Chemistry Nuclear

What is the symbol for an alpha particle?

• ⁴₂He
• ⁰_-1e
• ⁰₊₁ e
• ¹₀n

Tags

NGSS.HS-PS1-8

Iodine-131 has a half life of 8.0 days. How many grams of an original 160mg sample will remain after 32 days?

• 64
• 40
• 10
• 8

In the symbol ²⁰⁶₈₂Pb what does 206 stand for?

• Mass number
• Atomic number
• Atomic mass
• Number of protons

^{Identify the missing particle:
14}₆C --> ⁰_-1e + ________

• ¹⁴₅B
• ¹⁴₆C
• ¹⁴₇N
• ⁴₂He

Tags

NGSS.HS-PS1-8

Which type of radiation has the greatest penetrating power?

• Alpha
• Beta
• Gamma 
• Microwaves

The technetium-99 isotope has a half-life of 6.0 hours. If 100.0 mg were injected into a patient how much remains after 18 hours?

• 33.0 mg
• 12.5 mg
• .33 mg
• 15.8 mg

Tags

NGSS.HS-PS1-8

What is the equation for the positron emission by oxygen-16?

• ¹⁶₈O + ⁰₊₁e --> ¹⁶₉F
• ¹⁶₈O --> ⁴₂He + ¹²₆C
• ¹⁶₈O --> ⁰_-1e + ¹⁶₉F
• ¹⁶₈O --> ⁰₊₁e + ¹⁶₇N

Tags

NGSS.HS-PS1-8

What is the half-life of an isotope if after 20.0 days you have 4.0 grams remaining of a 64.0 grams sample?

• 1.25 days
• 5.0 days
• 0.000305 days
• 4.25 days

Tags

NGSS.HS-PS1-8

Which process involves the joining of small nuclei?

• Beta decay
• Alpha decay
• Nuclear fission
• Nuclear fusion

Tags

NGSS.HS-PS1-8

Name this reaction.

• Nuclear fission
• Nuclear fusion
• Alpha decay
• Beta decay

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8