Download "EP 06/12 | O que é Radioatividade? | WEBSÉRIE RADIOATIVIDADE"

"videoThumbnail EP 06/12 | O que é Radioatividade? | WEBSÉRIE RADIOATIVIDADE

Chernobyl brasileiro! O terrível caso do Césio-137!

Chernobyl brasileiro! O terrível caso do Césio-137!

Channel: Mega Curioso

Redação do zero com Fernanda Pessoa - 2º dia (CFPONLINE) | Enem & Vestibulares

Redação do zero com Fernanda Pessoa - 2º dia (CFPONLINE) | Enem & Vestibulares

Channel: FPTV | Fernanda Pessoa TV

Just a Guy

Just a Guy

Channel: Filmbilder & Friends

OS ESTADOS E AS CAPITAIS DO BRASIL

OS ESTADOS E AS CAPITAIS DO BRASIL

Channel: Resumos Animados

Garjajeva matrica zdravlja - 432Hz ☀️ Zlatno doba muzika

Garjajeva matrica zdravlja - 432Hz ☀️ Zlatno doba muzika

Channel: ZLATNO DOBA ☀️

CARACTERÍSTICAS GERAIS DOS SERES VIVOS | Biologia com Samuel Cunha

CARACTERÍSTICAS GERAIS DOS SERES VIVOS | Biologia com Samuel Cunha

Channel: Biologia com Samuel Cunha

Manual do Motor Stirling - Leandro Wagner

Manual do Motor Stirling - Leandro Wagner

Channel: Manual do Motor Stirling - Leandro Wagner

ciência em ação

quimica total

quimica em acao

valim

marcelão da quimica

samuel cunha

radioatividade

chernobyl

HBO

netflix

ENEM

Vestibular

Modelos atômicos

Marie Curie

radiação

Dalton

Raio X

elétron

césio 137

acidente

reação nuclear

emissões

alfa

beta

gama

decaimento radioativo

reaçao nuclear

fusão

fissão

quark

química

00:00:02

after this incredible journey through the

00:00:05

historical moments that led to the

00:00:07

discovery and development of

00:00:09

radioactivity,

00:00:11

let's now delve deeper into the concepts and

00:00:14

definitions that are widely demanded

00:00:17

by exams such as the ENEM and entrance exams

00:00:19

throughout Brazil

00:00:21

[Music]

00:00:26

let's start condensed everything

00:00:29

we have already said about radioactivity and

00:00:32

go deeper and some concepts

00:00:34

first what is radioactivity the

00:00:37

activity is a natural and

00:00:40

spontaneous process and is nothing more than the release

00:00:42

of energy from an unstable atomic nucleus

00:00:45

and what leads the atomic nucleus to be

00:00:49

installed in a unequal relationship between

00:00:52

protons and neutrons, even if a

00:00:55

nucleus has many more protons than

00:00:58

neutrons,

00:00:59

we run the risk of having a

00:01:00

stable radioactive nucleus and the opposite

00:01:03

is also true, if our nucleus has many

00:01:07

more neutrals than ready, we also, as a

00:01:10

rule, will have what a nucleus a

00:01:13

state a radioactive nucleus beauty and

00:01:17

now the radioactive stable nucleus to

00:01:20

acquire stability

00:01:22

will do what emit radiation will

00:01:26

expel protons and neutrons from the nucleus

00:01:29

beauty to correct this

00:01:33

unequal relationship and these changes in the nucleus of the

00:01:36

atom are called nuclear reactions

00:01:40

calm

00:01:42

now, a very important thing that

00:01:44

we have to do is differentiate

00:01:47

nuclear reactions from chemical reactions a

00:01:50

nuclear reaction is not a chemical reaction

00:01:53

we can start from an energetic point of view

00:01:55

nuclear reactions release

00:01:59

much more much more much more energy

00:02:02

than a chemical reaction

00:02:05

just so you have idea with the kilo of

00:02:07

uranium 235 I can produce more

00:02:11

energy than whoever sent two million

00:02:13

kilos of carbon 12

00:02:16

ok so nuclear reactions are more and

00:02:20

leslie beram more energy than

00:02:23

chemical reactions calm second point is

00:02:26

nuclear actions as the name itself says It

00:02:29

involves changes in the nucleus of the atom, okay,

00:02:34

chemical reactions involve changes

00:02:37

in the electrosphere.

00:02:55

temperature pressure

00:02:59

physical state in chemical state, what do you mean,

00:03:01

professor,

00:03:02

imagine that you have 10 grams of cesium

00:03:05

137, a radioactive sample,

00:03:08

it doesn't matter if these 10 grams will

00:03:10

be 21,500 degrees Celsius,

00:03:13

the radioactive intensity of that sample, that

00:03:16

is, the amount of radiation that is the

00:03:19

limit will be the same of the same 10 grams

00:03:22

being at 21 500 degrees celsius the

00:03:25

temperature will not change this

00:03:27

the same reasoning applies to the pressure

00:03:29

for the physical state chemical state it doesn't

00:03:32

matter what pressure the show is it

00:03:35

doesn't matter if I have a

00:03:37

sergium compound it's in the state solid liquid

00:03:39

gas it does

00:03:40

n't matter how it is combined if

00:03:43

the sergium is bonding with chlorine

00:03:44

forming a loop bonding with oxygen

00:03:47

forming an oxide it doesn't matter for the

00:03:50

same mass

00:03:51

we will have the same radio active intensity

00:03:55

therefore the amount of radiation that

00:03:58

10 grams of cesium will emit be the

00:04:01

same regardless of any of

00:04:04

these radiations

00:04:06

if you want to emit more radiation you will be

00:04:07

looking for more sergio oca it will decrease in action

00:04:10

you take a little away from you it is

00:04:13

related to the amount of

00:04:16

radioactive nuclei you have there

00:04:18

beauty and now that we have

00:04:20

conceptualized radioactivity

00:04:23

let's study radioactive emissions, that

00:04:25

is, we know, we have a dog, a

00:04:28

state, we know that this stable nucleus, in order to

00:04:31

acquire its stability, it will have

00:04:34

to emit radiation, it will have to throw

00:04:35

something out,

00:04:37

what are these things that our

00:04:40

nucleus is in? throwing it out this is what

00:04:43

we are going to study now come with me here

00:04:45

the works we will then identify and

00:04:48

classify the radiation that

00:04:51

the unstable climate that the radioactive nucleus

00:04:53

can emit for this we are going to use

00:04:56

this experiment which was the same

00:04:59

experiment used by rutherford

00:05:01

that script for side atomic model

00:05:03

that he identified and classified three

00:05:08

radiations which are the three generations that

00:05:10

we are going to change during this course

00:05:12

also with me so here in our

00:05:14

experiment we have a block of lead

00:05:17

and inside it an active radio shows

00:05:19

this show that will emit the radiations

00:05:23

ok

00:05:24

we are using lead here

00:05:26

because lead has a high density

00:05:29

so it is used to concentrate

00:05:33

and direct the beam of radioactivity

00:05:37

that will be emitted and will pass through

00:05:39

this small hole here, okay,

00:05:42

here we have two

00:05:45

electrified plates, one positively and another

00:05:48

negatively and finally a screen with

00:05:51

phosphorescent material that glows in

00:05:55

contact with radiation calmly now

00:05:59

when carrying out this experiment with

00:06:02

terror he noticed that this phosphorescent screen

00:06:05

was sensitized in three points

00:06:07

so it was shining up here it

00:06:10

was shining here in front it was

00:06:14

shining here below

00:06:16

ok so rutherford his experiment

00:06:19

he observed this from here

00:06:21

so now it's our turn to interpret

00:06:24

these results let's go here now under the

00:06:27

most obvious of all what draws the most

00:06:29

attention is that we have here at least

00:06:32

three radiations coming out of this radioactive nucleus

00:06:37

we we have a good team up here we

00:06:40

have an attack at the front and one is

00:06:42

here a little below

00:06:44

now what can we talk about

00:06:46

these radiations

00:06:48

let's start with this one from up here

00:06:50

why did she come up here what

00:06:53

do we have here an electric field of

00:06:56

positive charge

00:06:58

put so if we have a particle a

00:07:02

radiation that is

00:07:04

deflecting towards the positive electric field

00:07:08

we can say that this radiation can

00:07:12

have a negative charge because because the

00:07:15

positive attracts negative so the

00:07:17

first thing we can talk about

00:07:19

of this radiation here is that it has a negative charge,

00:07:26

look at this second one, it came

00:07:29

straight and was not influenced by the

00:07:34

electric field, neither positive nor negative,

00:07:37

we can say that this one is

00:07:40

neutral,

00:07:41

it's not true that it is neutral, beautiful, and

00:07:45

finally we have this one below

00:07:48

that suffered a small deviation towards the

00:07:50

negative electric field so we

00:07:54

can say that this radiation can have

00:07:57

a positive charge now let's take a

00:08:03

look at the trajectory of this radiation we

00:08:06

have this first radiation here that

00:08:09

went upwards, making this curve

00:08:12

look at the curve that it makes

00:08:14

beautiful, we have this other one here that

00:08:17

came straight and we have this third one that

00:08:22

made a small curve that goes downwards but

00:08:25

9

00:08:26

what can the trajectory of these radiations

00:08:30

tell us

00:08:33

now I have two electric fields here

00:08:37

the two are pulling they are attracting with

00:08:41

the same intensity

00:08:43

if both are pulling if both

00:08:45

are attracting with the same intensity and

00:08:48

we have radiation that makes a curve

00:08:52

and another radiation that makes a kitchen what does

00:08:55

this mean to us?

00:08:58

people, this

00:09:01

radiation here is probably lighter than this one here

00:09:04

because I'm pulling with the

00:09:06

same force and one makes a curve and the

00:09:10

other makes a little color, which

00:09:12

means this one is heavier and

00:09:14

this one is lighter, so look, this one

00:09:16

it is a radiation that has a

00:09:18

lower mass, we have

00:09:21

particles composing this radiation here

00:09:24

that have a lower mass and we have

00:09:26

particles that compose another radiation

00:09:29

here that has a greater mass, ok

00:09:36

noble gas, that is exactly what

00:09:39

inter for concluded from this experiment and

00:09:42

So what he did for this radiation here

00:09:45

that had a negative charge and less mass,

00:09:48

he gave the name beta radiation to

00:09:53

this radiation here that did not deflect either

00:09:56

positive or negative and he gave it the

00:09:59

name gamma radiation and for this last

00:10:03

radiation here which was heavier and

00:10:06

had a positive charge, he called it

00:10:09

alpha radiation, baby, so these

00:10:13

were the three radiations that Rutherford

00:10:17

identified during his

00:10:19

very crazy experiment, right?

00:10:21

For this experiment and for these

00:10:24

discoveries,

00:10:25

TSE received the Nobel Prize for Chemistry

00:10:27

in 1908 and a few years later, in 1911, he

00:10:32

discovered a nucleus, the nucleus of the atom, and

00:10:35

proposed his atomic model, which became

00:10:37

known as planetary,

00:10:40

after which other radioactive emissions

00:10:42

were discovered by other scientists,

00:10:46

but our main focus here will be

00:10:49

these three that we will study ours.

00:10:51

next video ok so it is under this

00:10:55

wonderful work today we identify and

00:10:58

know the characteristics of 3

00:11:00

super important radiations for our

00:11:02

study a first lighter radiation with a

00:11:06

negative charge which is beta radiation

00:11:08

another one with heavier action with a

00:11:12

positive charge which alpha radiation and

00:11:14

neutral radiation, which was gamma radiation,

00:11:18

and in the next class we will delve deeper

00:11:21

into each of them and understand what

00:11:24

happens

00:11:25

in the nucleus when it emits these

00:11:26

radiations and how the emission of these

00:11:29

radiations helps it reach its

00:11:32

stability,

00:11:34

so stay tuned Subscribe to our

00:11:36

channel

00:11:37

leave your limit and see you in our

00:11:39

next class

00:11:40

bye bye

Description:

Fala Gás Nobre, tudo bem? Preparado pra reagir? Esse é o episódio 06/12 da nossa websérie interdisciplinar sobre RADIOATIVIDADE! Depois dessa viagem incrível pelos momentos históricos que levaram à descoberta e ao desenvolvimento da radioatividade vamos agora aprofundar nos conceitos e definições que são amplamente cobrada pelos exames ENEM e Vestibulares de todo Brasil. Nesse episódio vamos condensar tudo que já falamos sobre a Radioatividade e aprofundar em alguns conceitos! E aí preparado para a maior reação da sua VIDA? Reage!!! 👉 Resumos GRÁTIS: 🚨 https://valim.cienciaemacao.com.br/pt/materiais-gratuitos 🚨 Cadastre-se e receba toda semana os assuntos mais cobrados no ENEM e Vestibulares. Acesse todo conteúdo de Química 🧪, Física 🖩 e Biologia 🧬 em https://cienciaemacao.com.br/ Instagram: @plvalim Facebook: ttps://www.facebook.com/quimicapaulovalim

Preparing download options

Popular

HD video

Only sound

All

* — If the video is playing in a new tab, go to it, then right-click on the video and select "Save video as..."

** — Link intended for online playback in specialized players

Questions about downloading video

How can I download "EP 06/12 | O que é Radioatividade? | WEBSÉRIE RADIOATIVIDADE" video?

http://unidownloader.com/ website is the best way to download a video or a separate audio track if you want to do without installing programs and extensions.
The UDL Helper extension is a convenient button that is seamlessly integrated into YouTube, Instagram and OK.ru sites for fast content download.
UDL Client program (for Windows) is the most powerful solution that supports more than 900 websites, social networks and video hosting sites, as well as any video quality that is available in the source.
UDL Lite is a really convenient way to access a website from your mobile device. With its help, you can easily download videos directly to your smartphone.

Which format of "EP 06/12 | O que é Radioatividade? | WEBSÉRIE RADIOATIVIDADE" video should I choose?

The best quality formats are FullHD (1080p), 2K (1440p), 4K (2160p) and 8K (4320p). The higher the resolution of your screen, the higher the video quality should be. However, there are other factors to consider: download speed, amount of free space, and device performance during playback.

Why does my computer freeze when loading a "EP 06/12 | O que é Radioatividade? | WEBSÉRIE RADIOATIVIDADE" video?

The browser/computer should not freeze completely! If this happens, please report it with a link to the video. Sometimes videos cannot be downloaded directly in a suitable format, so we have added the ability to convert the file to the desired format. In some cases, this process may actively use computer resources.

How can I download "EP 06/12 | O que é Radioatividade? | WEBSÉRIE RADIOATIVIDADE" video to my phone?

You can download a video to your smartphone using the website or the PWA application UDL Lite. It is also possible to send a download link via QR code using the UDL Helper extension.

How can I download an audio track (music) to MP3 "EP 06/12 | O que é Radioatividade? | WEBSÉRIE RADIOATIVIDADE"?

The most convenient way is to use the UDL Client program, which supports converting video to MP3 format. In some cases, MP3 can also be downloaded through the UDL Helper extension.

How can I save a frame from a video "EP 06/12 | O que é Radioatividade? | WEBSÉRIE RADIOATIVIDADE"?

This feature is available in the UDL Helper extension. Make sure that "Show the video snapshot button" is checked in the settings. A camera icon should appear in the lower right corner of the player to the left of the "Settings" icon. When you click on it, the current frame from the video will be saved to your computer in JPEG format.

What's the price of all this stuff?

It costs nothing. Our services are absolutely free for all users. There are no PRO subscriptions, no restrictions on the number or maximum length of downloaded videos.