radioactive decay and half life

In the equation,  ^14₆C --> ^14₇N + ^0_-1B, the _______ decay of radioactive carbon-14 results in the creation of a new nitrogen-14 atom.

• Radioactive
• Beta
• Alpha
• Gamma

Tags

NGSS.HS-PS1-8

Which type of nuclear radiation is being emitted here?

• Alpha
• beta
• gamma 
• none

Tags

NGSS.HS-PS1-8

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

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

• alpha
• beta
• gamma
• none

Tags

NGSS.HS-PS1-8

Solve this equation for alpha decay.

₈₅²⁰⁹At --> ___ + ₂⁴He

• ₈₃²⁰⁵Bi

• ₈₆²⁰⁹Rn

• ₈₁²⁰⁷Tl

• ₈₅²⁰⁸At

Tags

NGSS.HS-PS1-8

Balance the following equation:
¹⁴₆C --> ⁰_-1e + ________

• ¹⁴₅B
• ¹⁴₆C
• ¹⁴₇N
• ⁴₂He

Tags

NGSS.HS-PS1-8

Gamma rays have

• no mass

• a huge mass

• a small mass

• an average mass

Tags

NGSS.HS-PS4-3

Solve this equation for beta decay.

₆¹⁴C --> ___ + _-1⁰e

• ₄¹⁰Be

• ₇¹⁴N

• ₂¹⁰He

• ₆¹³C

Tags

NGSS.HS-PS1-8

Carbon-14 has a half life of 5730 years, how many years would it take the 4.0 g sample to decay to 0.25 g?

• 4 years

• 5730 years

• 22,920 years

• 28,650 years

Tags

NGSS.HS-PS1-8

An isotope of cesium (cesium-137) has a half-life of 30 years. If 1.0 mg of cesium-137 disintegrates over a period of 90 years, how many mg of cesium-137 would remain?

• 0.5 mg

• 0.25 mg

• 0.125 mg

• 0.0625 mg

Tags

NGSS.HS-PS1-8