Nuclear Chemistry

What is the name of this isotope?

• Germanium-32

• Germanium-72

• Germanium-72.64

• Hafnium-72

Tags

NGSS.HS-PS1-8

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

• ¹⁴₅B

• ¹⁴₆C

• ¹⁴₇N

• ⁴₂He

Tags

NGSS.HS-PS1-8

If an atom of Americium-231 (Am) goes through alpha decay, what would you have at the end?

• Neptunium-227

• Neptunium-234

• Plutonium-231

• Curium-247

Tags

NGSS.HS-PS1-4

NGSS.HS-PS1-8

After 22,800 years, approximately what percentage of the original carbon-14 remains?

• 15%

• 12.5%

• 6.25%

• 3.125%

Radioactive materials have unstable...

• electrons

• protons

• nuclei

• neutrons

Tags

NGSS.HS-PS1-8

Which subatomic particle(s) determine the mass of the atom?

• protons & neutrons

• protons only

• protons & electrons

• neutrons & electrons

In the symbol ¹⁶₇N what does the 7 stand for?

• Mass number

• Atomic number

• Atomic mass

• Number of neutrons

In the symbol ²⁰⁶₈₂Pb what does 206 stand for?

• Mass number

• Atomic number

• Atomic mass

• Number of protons

If an atom of potassium-40 (K) only goes through gamma decay, what would you have at the end?

• Potassium-40

• Calcium-40

• Argon-35

• Potassium-39

Tags

NGSS.HS-PS1-8

_____is the joining of atomic nuclei

• Fusion

• chain reaction

• Photosynthesis

• Fission

Tags

NGSS.HS-PS1-8