Radioactive

Complete the nuclear equation and determine the type of decay that is occurring in this reaction. 

• alpha

• beta

• gamma

• none

Tags

Solve Alpha/Beta

How is the alpha particle written in a nuclear equation?

• ⁴₂He

• ²₄He

• ⁰_-1e

• ⁰₀γ

Tags

Alpha/Beta

Solve this equation for alpha decay.
₈₅²⁰⁹At = ___ + ₂⁴He

• ₈₃²⁰⁵Bi

• ₈₆²⁰⁹Rn

• ₈₁²⁰⁷Tl

• ₈₅²⁰⁸At

Tags

Solve Alpha/Beta

Solve this equation for beta decay.
₆¹⁴C = ___ + _-1⁰e

• ₄¹⁰Be

• ₇¹⁴N

• ₂¹⁰He

• ₆¹³C

Tags

Solve Alpha/Beta

What is the half-life of mercury-203?

• 50 years

• 50 days

• 50%

• 100 days

Tags

NGSS.HS-PS1-8

How much radioactive material is left after 10 years?

• 6.25%

• 50%

• 25%

• 12.5%

Tags

NGSS.HS-PS1-8

What is the name given to an "unstable" isotope?

• radioactive

• radioisotopes

• photon

• electron cloud

Tags

NGSS.HS-PS1-8

How many of the atoms have decayed to daughter atoms after 2 half-lifes?

• 10

• 5

• 15

• 2.5

What type of radioactive decay is shown here? Notice it is emitting an electron.

• Alpha decay

• Beta decay

• Gamma decay

Tags

NGSS.HS-PS1-8

Carbon-14 decomposes into ​ (a)  

• Nitrogen-14

• Nitrogen-12

• Uranium

• Lead

• Argon

• Potassium

Tags

NGSS.HS-PS1-8