Radioactive Decay

When an unstable radioactive atom decays, it usually turns into:

• a more stable atom
• a less stable atom
• the exact same atom but with less pure energy
• empty space

Tags

NGSS.HS-PS1-8

What type of radioactive decay is this example?

• Alpha

• Negative Beta

• Positive Beta

• Gamma

Tags

NGSS.HS-PS1-8

How is the alpha particle written in a nuclear equation?

• ⁴₂He

• ²₄He

• ⁰_-1e

• ⁰₀γ

Tags

NGSS.HS-PS1-8

How is the negative beta particle written in a nuclear equation?

• ⁴₂He

• ⁰₊₁e

• ⁰_-1e

• ⁰₀γ

Tags

NGSS.HS-PS1-8

What type of radioactive decay is this example?

• alpha

• negative beta

• positive beta

• gamma

Tags

NGSS.HS-PS1-8

What type of radioactive decay is this example?

• alpha

• beta minus

• beta plus

• gamma

Tags

NGSS.HS-PS1-8

If we start off with element ⁵⁰₂₄X after an gamma decay we get another element that looks like

• ⁵¹₂₄X

• ⁵⁰₂₃X

• ⁵⁰₂₄X

• ⁵¹₂₅X

Tags

NGSS.HS-PS1-8

²²⁰₈₇Fr —› ⁴₂He + ____

• ²²⁰₈₉Ac

• ²²⁴₉₀Th

• ²¹⁶₈₅At

• ²¹⁶₈₈Ra

Tags

NGSS.HS-PS1-8

¹⁴₆C —› ⁰_-1e + ____

• ¹²₆C

• ¹⁴₇N

• ¹⁴₈O

• ¹⁴₅B

Tags

NGSS.HS-PS1-8

³¹₁₃Al —› ⁰₊₁e + ____

• ³¹₁₁Na

• ³¹₁₂Mg

• ³¹₁₄Si

• ³¹₁₅P

Tags

NGSS.HS-PS1-8