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Unit 2 Radioactive Decay

Authored by Sarah Ganrude

Chemistry

10th - 12th Grade

NGSS covered

Used 112+ times

Unit 2 Radioactive Decay
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11 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

When a nucleus undergoes nuclear decay by gamma rays, the atomic number of the element....

remains the same
  decreases by one.
increases by one.
increases by two.

Tags

NGSS.HS-PS1-8

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A helium nucleus with two protons and two neutrons is called a(n) ____.  

alpha particle
electroscope
beta particle
gamma ray

Tags

NGSS.HS-PS1-8

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Negatively charged particles emitted from a nucleus at a high speed are ____.  

alpha particle
gamma rays
beta particles
X rays

Tags

NGSS.HS-PS1-8

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 For the following nuclear reaction, what was the starting substance (X)?
      X     86Rn222 + 2He

Radium-222
Radon-222
Radon-226
Radium-226

Tags

NGSS.HS-PS1-8

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Complete the following reaction and choose the type of decay.

54Xe
118 → X + 55Cs118

alpha emission
neutron activation
beta emission
gamma emission

Tags

NGSS.HS-PS1-8

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What element does carbon-14 become after undergoing beta decay?
 

 7N13 
5B14
7N14 
6C14 

Tags

NGSS.HS-PS1-8

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which particle contains the most mass?

positron

alpha

beta

gamma

Tags

NGSS.HS-PS1-8

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