Nuclear Chem all review

What is the symbol for an alpha particle?

• ⁴₂He
• ⁰_-1e
• ⁰₊₁ e
• ¹₀n

Tags

NGSS.HS-PS1-8

In the symbol ²⁰⁶₈₂Pb what does 206 stand for?

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

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

• ¹⁴₅B
• ¹⁴₆C
• ¹⁴₇N
• ⁴₂He

Tags

NGSS.HS-PS1-8

Which type of radiation has the greatest penetrating power?

• Alpha
• Beta
• Gamma 
• Microwaves

Tags

NGSS.HS-PS4-4

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

Which of the following is a fusion reaction?

• hydrogen-2 and hydrogen-3 combining to form a helium-4 atom and a neutron
• Carbon-14 emitting an alpha particle
• uranium-235 absorbing a neutron and breaking into barium-141, krypton-92, and three neutrons
• uranium-238 emitting a beta particle

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

What is Half-life?

• The amount of time it takes for some of the nuclei in a sample of the isotope to decay
• The amount of time it takes for half the electrons in a sample of the isotope to decay
• The amount of time it takes for half the nuclei in a sample of the isotope to decay
• the amount of time it takes to double the nuclei in a sample of the isotope to decay

Tags

NGSS.HS-PS1-8

If the half-life of uranium-232 is 70 years, how many half-lives will it take for 10 g of it to be reduced to 1.25 g?

• 1 half-life
• 2 half-lives
• 3 half-lives
• 4 half-lives

Tags

CCSS.HSF.LE.A.4

Which diagram best represents the percentage of this radioactive isotope sample that will remain after 2 half-lives?

• 
• 
• 
• 

Tags

NGSS.HS-PS1-8

What is the half-life of iodine-131?

• 32 days
• 8 days
• 16 days
• 24 days

Tags

NGSS.HS-PS1-8