Nuclear Chemistry Quiz

What is the correct # of protons, electrons, and neutrons for Cobalt - 59?

• 27 protons, 59 electrons, & 27 neutrons

• 59 protons, 59 electrons, & 86 neutrons

• 27 protons, 27 electrons, & 32 neutrons

• 27 protons, 32 electrons, & 27 neutrons

Tags

NGSS.MS-PS1-1

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

• protons & neutrons

• protons only

• protons & electrons

• neutrons & electrons

What is the name of this isotope?

• Germanium-32

• Germanium-72

• Germanium-72.64

• Hafnium-72

Tags

NGSS.HS-PS1-8

What is an isotope?

• Atoms of the same element with different masses.

• Atoms of the same element with different # of protons.

• Atoms of the same element with different atomic numbers.

• Atoms of the same element with the different # of electrons.

Tags

NGSS.MS-PS1-1

What type of radioactive decay is pictured here?

• Alpha decay

• Beta decay

• Gamma decay

• Positron decay

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

• ¹⁴₅B
• ¹⁴₆C
• ¹⁴₇N
• ⁴₂He

Tags

NGSS.HS-PS1-8

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

• Mass number

• Atomic number

• Atomic mass

• Number of neutrons

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-PS1-8

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

• 15%

• 12.5%

• 6.25%

• 3.125%

Tags

NGSS.HS-PS1-8

In the symbol ²⁰⁶₈₂Pb what does 206 stand for?

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