Asked by I am awesome

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

Answers

Answered by I am awesome
I won't rush ANYONE but i really need help!
Answered by DrBob222
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
Answered by Lexie
so what was 3?
Answered by TRRR+S<3
number 3 is b.
Answered by nobodyknows
I just got 100%
1.C
2. B
3. B
4.D
Answered by Elliot
nobodyknows is right

100%


they win

everything
Answered by Mr.Clean
Yea they are correct
Answered by johana
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
Answered by test
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
Answered by test
it is kinda important that i get everything right
Answered by Joe
C B B D Got a 100%
Answered by yay
C
B
B
D
is correct i just got 100% on it!!!
Answered by David
Yes, the answers are:

1.C

2.B

3.B

4.D
Answered by 😀
Anwers are
C
B
B
D

I just took a quiz
Answer
I got a 100% as well.
Answered by ~Kitty~
C
B
B
D

Just took it! 100% XD
Answered by Derp
ANSWERS
C
B
B
D
100 percent :D
Answered by CrendyGal
Yep

C
B
B
D
is all 100!
Answered by Rainbowsrule
The answers are
C
B
B
D.
I took the test and got 100%
Answered by Wolfie
Joe, yay, David, 😀, ~Kitty~, Derp, CrendyGal, and Rainbowsrule are all correct 😊.
Answered by Jane Barlow.
Thanks guys just got 100%
Answered by trust us
yes it totally works!!!
c
b
b
d
!!!!!!
The answers are:
1.c
2.b
3.b
4.d
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Answered by Dragon Master
Thank you guys! :3
Answered by Corbin
You confused me and I only got 2 of 4

:(
Answered by AlexaBliss<3
1.C
2.B
3.B
4.D
these are 100% answers believe me I took the assessment
Answered by yeetballer

C
B
B
D
is 100% correct thx everyone ;)
Answered by Blahhh
C
B
B
D
100% correct!
Answered by Anonymous
C
B
B
D
∞ %!!!!!!!!!
Answered by LegoLover45
For sure:

C
B
B
D

Thank you!
Answered by Melody.S
Hey, thanks for the help, it was a 100%!
Answered by AnswerQueen
1. C
2. B
3. B
4. D
100%
Answered by Tisky
Yeah, it's C B B D
Answered by N
C
B
B
D is correct
Answered by hi
sup its a b c d ok bye
Answered by diamondsilverandgold
C
B
B
D
No lie this is right it got 100%
Answered by yayy
c
b
b
d
Answered by Alpha
1. C
2. B
3. B
4. D

110% Garentee (R.I.P. spelling)
Answered by Thank you
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%
Answered by dent
Yup, it's correct, Thanks.
Answered by a,b,c,c
I am telling the truth a,b,c,c they change the order
Answered by I know :)
I just took the assessment for connections academy and got 100% 4/4.
Using the answers
C, B, B, D
Answered by Tasha:):
yeah, what they said. :D
1.C
2.B
3.B
4.D
Answered by Bun
C
B
B
D
Answered by Burger
C
B
B
D
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
Answered by JoeTheJiskhaAdmin
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.
Answered by Aspect
C
B
B
D
100%!!!!
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Answered by captin huggie
i feel like the only students who use this site are connections students lol
Answered by xXWolfyHackerKillzXx
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USE CBBD
Answered by Yours truly☺️
Me coming 5 years after to use this🤣 the answers are;
C
B
B
D
Answered by Yours truly☺️
Hope that helps!
Answered by Your local trash can
Thank you “nobody knows” !
CBBD! 100%!
Answered by TheVeganDragon
THANK U nobodyknows
Answered by (-_________-)
c b b d lolololololool
Answered by Dat guy
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.
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