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Radioactive decay

Authored by Jay Mathyi

Science

9th Grade

NGSS covered

Used 26+ times

Radioactive decay
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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

This term refers to the amount of time it takes for half of a certain substance to undergo radioactive decay.

alpha life

beta life

radioactivity time

half-life

Tags

NGSS.HS-PS1-8

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In alpha decay, a ________ particle breaks off of an atom.

hydrogen

helium

carbon

lithium

Tags

NGSS.HS-PS1-8

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many total protons and neutrons does an alpha particle (i.e. a helium atom) have?

1

2

4

8

Tags

NGSS.HS-PS1-8

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which force is responsible for beta decay?

Electromagnetism

Weak force

Strong force

Gravity

Tags

NGSS.HS-PS1-8

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In beta decay, a(n) ___________ is emitted.

gamma ray

electron

neutron

helium particle

Tags

NGSS.HS-PS1-8

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to an atom's atomic number when it undergoes alpha decay?

decreases by 1

decreases by 2

increases by 1

increases by 2

Tags

NGSS.HS-PS1-8

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In gamma emission, ___________ is emitted.

an electron

a proton

energy waves

none of the above

Tags

NGSS.HS-PS1-8

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