Radioactive Decay

How is the alpha particle written in a nuclear equation?

• ^4₂He
• ^2₄He

Tags

NGSS.HS-PS1-8

Uranium-238  decays into  Thorium-234  by emitting .........

• an alpha particle
• a beta particle
• gamma rays
• visible light

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

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

Has the symbol

• Alpha
• Beta 
• Gamma

Has the highest penetrating power.  Can penetrate our body.  Even several cm thick of lead or several meters thick of concrete cannot stop all of it.

• Alpha
• Beta
• Gamma

Tags

NGSS.HS-PS4-4

An alpha particle can penetrate

• a sheet of paper.
• a thin layer of cloth.
• a sheet of aluminum.
• none of the above

Identify the missing substance in each of the following nuclear reactions.
 _____→¹³⁷ ₅₆ Ba + ⁰ ₋₁ e 

• ¹³⁷₅₅Ba
• ¹³⁷₅₇La
• ¹³⁸₅₆Ba
• ¹³⁷ ₅₅Cs

Tags

NGSS.HS-PS1-8

Which nuclear emission involves the release of helium nuclei?

• alpha
• gamma
• positron
• beta

Tags

NGSS.HS-PS1-8