Question

If an atomic nucleus spontaneously emits two protons and two neutrons, then ________has taken place.

Question 28 options:

alpha decay


beta decay
Suppose you have 50 grams of a radioactive isotope with a half-life of 2 years. How much of the isotope will you have after 4 years?

Question 29 options:

12.5


6.25 grams

Answer 1

@mathmath333

Answer 2

@gottennis121

Answer 3

@gottennis121 this is chemistry lol :D

Answer 4

Okay for question 29, it is pretty easy @kaley246. If you have 50 grams with a half-life of 2 years, how many will you have in 2 years?

Answer 5

no this is physical science

Answer 6

i think alpha particle is correct for 1st one

Answer 7

100 @asett

Answer 8

2nd one i dont know

Answer 9

Not quite! You're going the wrong way :D. Remember, half-life, all you do is divide the grams (in this case 50) in half every half-life time sequence (in this case, coincidentally, 2 years). Does that make sense? So in 4 years, you just have to divide the 50 grams in half twice.

Answer 10

12.5@asett

Answer 11

12.5 @asett

Answer 12

@mathmath333 are you sure for the first one is a

Answer 13

Exactly!! For the question 28, the atomic nucleus has released a helium-4 atom, thus making it an alpha particle.

Answer 14

So, yes @kaley246, we have here alpha decay!

Answer 15

@asett what number 29 is it 12.5

Answer 16

Yes it is 12.5

Answer 17

Which type of nuclear waste can be disposed of in a landfill?

Question 30 options:

low-level


transuranic

Answer 18

@YoungStudier

Answer 19

@Qwertty123

Answer 20

@Mehek14

Answer 21

@mathmath333

Answer 22

@gottennis121

Answer 23

@ganeshie8

Answer 24

@F_Jayyy

Answer 25

Question 28: Alpha decay is a radioactive process in which a particle with two neutrons and two protons is ejected from the nucleus of a radioactive atom.

Question 29: "a half-life of 2 years" means that after 2 years, the original amount will decay to half the original amount
So if it is 50 then you divide by 2 and since the you have to calculate to 4 years divide by 2 again
50/2 = 25
25/2 = 12.5
12.5 is you final answer

Answer 26

ok yea
what about queston 30

Answer 27

Question 30: It would be low-level because transuranic waste contains radioactive elements, such as neptunium, plutonium, americium and many other elements and substances that have atomic numbers higher than uranium in the periodic table of elements. After seeing this transuranic would be false because of all the chemicals and hazardous pollution it would bring to the air...

Answer 28

High-level nuclear waste must be carefully contained because it can cause

Question 31 options:

blindness


cancer

Answer 29

nuclear waste = radiation
radiation causes cancer

Answer 30

so it was cancer

Answer 31

@F_Jayyy

Answer 32

yes

Answer 33

Clothing that comes into contact with radiation is considered high-level nuclear waste.
Question 32 options:

TRUE

FALSE

Answer 34

@KendrickLamar2014

Answer 35

@F_Jayyy

Answer 36

False...because if you think about it x-rays are considered radiation and we have all had xrays done from time to time like the dentists or the doctors and sometimes it may hit our clothes but that does not make it a high-level nuclear waste.

Answer 37

Transuranic waste requires deep geological burial.
Question 33 options:

TRUE

FALSE

Answer 38

@F_Jayyy

Answer 39

True...but the land that it is buried in would not be usable anymore for alot of things because it is considered contaminated

Answer 40

yo its break time i can help you in about 20 mins if that fine??

Answer 41

yes
it is

Answer 42

Clothing that comes into contact with radiation is considered high-level nuclear waste.
Question 32 options:

TRUE

FALSE

Answer 43

@ganeshie8

Answer 44

@gottennis121

Answer 45

@Qwertty123

Answer 46

@YoungStudier

Answer 47

@across @Awolflover1 @Agl202 @AloneS @AnitaS. @Atrineas

Answer 48

@Bookworm14 @baru @Buttercup214 @barrycarter @briggles1999

Answer 49

@Cuanchi @caozeyuan @chainedecho @chris215

Answer 50

@Daniellelovee @deadpoolroxz @Decarr432 @daniel.ohearn1 @d

Answer 51

@FaiqRaees @flexastexas @frizzy.franny

Answer 52

@georgesyip @ganeshie8 @gottennis121

Answer 53

@caozeyuan

Answer 54

Q32?

Answer 55

yes

Answer 56

sorry, this is out of my knowledge, I only learned about nuclear stuff from gen chem and phys class

Answer 57

this is phyiscal science

Answer 58

I never knew phy sci is this hard, I thought its fro people who dont do sci but need sci class for school reqs

Answer 59

this is like chemistry

Answer 60

@daniel.ohearn1 can you help me please

Answer 61

ok im back

Answer 62

ok number 32

Answer 63

@aaronq

Answer 64

Clothing that comes into contact with radiation is considered high-level nuclear waste.
Question 32 options:

TRUE

FALSE

Answer 65

False...my clothes have been in contact with radiation whether it be the dentist or the x-ray at the hospital and i was not told to strip lol so i doubt it would be considered high level nuclear waste

Answer 66

Nuclear power has the advantage over coal in that nuclear power does not produce as much carbon dioxide as coal.
Question 34 options:

TRUE

FALSE

Answer 67

nuclear power produces steam so yes it would have the advantage

Answer 68

@uri

Answer 69

false

Answer 70

so its false @F_Jayyy

Answer 71

First this should help you for your first question:
http://www.kentchemistry.com/links/Nuclear/AlphaBetaGamma.htm

Second https://rechneronline.de/chemie-rechner/half-life.php

Answer 72

is it false for the second answer

Answer 73

@F_Jayyy

Answer 74

@daniel.ohearn1 it is false

Answer 75

@uri

Answer 76

@Quinnlover @Qwertty123

Answer 77

Your options are 12.5 or 6.25 grams, plug in the 3 bits of info you have and you should have your answer.

Answer 78

i already did that one

Answer 79

Nuclear power has the advantage over coal in that nuclear power does not produce as much carbon dioxide as coal.
Question 34 options:

TRUE

FALSE

Answer 80

Clothing that comes into contact with radiation is considered high-level nuclear waste.
Question 32 options:

TRUE

FALSE

Answer 81

Nuclear power produces less toxic sulfur than coal-burning electricity.
Question 35 options:

TRUE

FALSE

Answer 82

Nuclear power produces tons of high-level radioactive waste that has to be disposed of carefully.
Question 36 options:

TRUE

FALSE

Answer 83

can you answer all of those

Answer 84

@InstagramModel

Answer 85

@brutal666

Answer 86

@sweetburger @Abhisar

Answer 87

@MollyNicole2015 @ILovePuppiesLol

Answer 88

What's ur question?

Answer 89

Nuclear power has the advantage over coal in that nuclear power does not produce as much carbon dioxide as coal.
Question 34 options:

TRUE

FALSE
Save

Answer 90

@Abhisar

Answer 91

Nuclear power produces less toxic sulfur than coal-burning electricity.
Question 35 options:

TRUE

FALSE