Question

I'm kinda in a rush but take your time!Thx!

1.What was Henri Becquerel studying when he accidentally discovered radioactivity?

A.photography
B.properties of black light
C.properties of X-rays
D.solar energy

2.When Marie Curie isolated uranium from pitchblende, she realized that the pitchblende was more radioactive than the uranium she had extracted. What did she conclude about her observations?

A.Pitchblende itself is a radioactive element
B.The pitchblende sample contained an unknown radioactive element
C.The pitchblende sample was defective
D.Pitchblende should be used as radiation therapy

3.Henri Becquerel's original hypothesis was that fluorescent minerals became excited by a solar energy and gave off X-rays. However, after he discovered uranium minerals emitted their own radiation without the help of solar energy, he abandoned his hypothesis. Why did Becquerel abandon his first hypothesis?

A.He was afraid of ridicule from the scientific community for being wrong
B.He found new evidence that didn't support his original hypothesis
C.He couldn't repeat the results in multiple experiments.
D.He couldn't make the experiment work, so he came up with a new plan

4.Marie Curie had many "firsts". Which of the following is not one of Marie Curie's firsts?

A.first female Nobel Prize winner
B.first female professor in the Faculty of Sciences
C.first to suggest that atoms can change
D.first to discover X-rays

My answers:
1.D
2.B
3.A
4.D

Answer 1

I won't rush ANYONE but i really need help!

Answer 2

I agree with 2 and 4 but not 1 and 30 Read this for 1 and 3.

http://www2.lbl.gov/abc/wallchart/chapters/03/4.html

Answer 3

so what was 3?

Answer 4

number 3 is b.

Answer 5

I just got 100%
1.C
2. B
3. B
4.D

Answer 6

nobodyknows is right

100%


they win

everything

Answer 7

Yea they are correct

Answer 8

that it is the question correctly because thy are confusing me.
answers:
1.D
2.B
3.A
4.D

answers
1.C
2. B
3. B
4.D

Answer 9

really really really need help. have to get done by today

3.Henri Becquerel's original hypothesis was that fluorescent minerals became excited by a solar energy and gave off X-rays. However, after he discovered uranium minerals emitted their own radiation without the help of solar energy, he abandoned his hypothesis. Why did Becquerel abandon his first hypothesis?

A.He was afraid of ridicule from the scientific community for being wrong
B.He found new evidence that didn't support his original hypothesis
C.He couldn't repeat the results in multiple experiments.
D.He couldn't make the experiment work, so he came up with a new plan

4.Marie Curie had many "firsts". Which of the following is not one of Marie Curie's firsts?

A.first female Nobel Prize winner
B.first female professor in the Faculty of Sciences
C.first to suggest that atoms can change
D.first to discover X-rays

Answer 10

it is kinda important that i get everything right

Answer 11

C B B D Got a 100%

Answer 12

C
B
B
D
is correct i just got 100% on it!!!

Answer 13

Yes, the answers are:

1.C

2.B

3.B

4.D

Answer 14

Anwers are
C
B
B
D

I just took a quiz

Answer 15

I got a 100% as well.

Answer 16

C
B
B
D

Just took it! 100% XD

Answer 17

ANSWERS
C
B
B
D
100 percent :D

Answer 18

Yep

C
B
B
D
is all 100!

Answer 19

The answers are
C
B
B
D.
I took the test and got 100%

Answer 20

Joe, yay, David, 😀, ~Kitty~, Derp, CrendyGal, and Rainbowsrule are all correct 😊.

Answer 21

Thanks guys just got 100%

Answer 22

yes it totally works!!!
c
b
b
d
!!!!!!

Answer 23

The answers are:
1.c
2.b
3.b
4.d
100% connection students

Answer 24

Thank you guys! :3

Answer 25

You confused me and I only got 2 of 4

:(

Answer 26

1.C
2.B
3.B
4.D
these are 100% answers believe me I took the assessment

Answer 27

C
B
B
D
is 100% correct thx everyone ;)

Answer 28

C
B
B
D
100% correct!

Answer 29

C
B
B
D
∞ %!!!!!!!!!

Answer 30

For sure:

C
B
B
D

Thank you!

Answer 31

Hey, thanks for the help, it was a 100%!

Answer 32

I guess it's CBBD

Answer 33

1. C
2. B
3. B
4. D
100%

Answer 34

Yeah, it's C B B D

Answer 35

C
B
B
D is correct

Answer 36

sup its a b c d ok bye

Answer 37

C
B
B
D
No lie this is right it got 100%

Answer 38

c
b
b
d

Answer 39

1. C
2. B
3. B
4. D

110% Garentee (R.I.P. spelling)

Answer 40

Thank you to every one who said the answers are

1:C
2:B
3:B
4:D
I just took the test and I got 100%

Answer 41

Yup, it's correct, Thanks.

Answer 42

I am telling the truth a,b,c,c they change the order

Answer 43

I just took the assessment for connections academy and got 100% 4/4.
Using the answers
C, B, B, D

Answer 44

yeah, what they said. :D
1.C
2.B
3.B
4.D

Answer 45

C
B
B
D

Answer 46

C
B
B
D

Answer 47

1. C- properties of xrays
2. B- the pitchblende sample contained an unknown radioactive element
3. B- he found new evidence that didn't support his original hypothesis
4. D- first to discover xrays

Answer 48

Good job to whoever figured out the correct answer FIRST. Well done. By the way, I am a LEGIT ADMIN for Jiskha.com. I didn't create this page, but I have created other pages. I remember DrBob222 and i am awesome from one of pages. Burger from another.

Answer 49

C
B
B
D
100%!!!!
2020 is ruined by the coronavirus btw :(

Answer 50

i feel like the only students who use this site are connections students lol

Answer 51

YEEEEEEAAAAA BOIIIIIIIII (LOL IM WEIRD)



USE CBBD

Answer 52

Me coming 5 years after to use this🤣 the answers are;
C
B
B
D

Answer 53

Hope that helps!

Answer 54

Thank you “nobody knows” !

Answer 55

CBBD! 100%!

Answer 56

THANK U nobodyknows

Answer 57

c b b d lolololololool

Answer 58

ya know this site is so cool.People who just need some help if there in a hurry or if you just need to double check your answers there's almost always someone there to help.so thank you all for being such cool people.
so for my awesome dudes have a five dollar bill [̲̅$̲̅(̲̅5̲̅)̲̅$̲̅]