Nuclear Chemistry

What is the mass number in this isotope symbol?

• 26

• 22

• 48

• 70

Tags

NGSS.HS-PS1-7

Which is the correct pairing of information about the history of the atomic model?

• Bohr--bowling ball model

• Rutherford--energy levels

• Thompson--plum pudding model

• Dalton--quantum model

The spontaneous breakdown of a nucleus by releasing energetic particles is

• radioactivity

• oxidation

• decomposition

• half-life

Tags

NGSS.HS-PS1-8

The time required for one- half of a radioactive sample of an isotope to undergo radioactive decay is its

• radiation time

• fusion life

• isotope

• half-life

Tags

NGSS.HS-PS1-8

What does the number 22 in the isotope symbol represent?

• mass number

• atomic number

• number of neutrons

• radiation number

Calculate the average atomic mass of silver using the information in the image. Round to the hundredth.

• 107.96 amu

• 108.45 amu

• 107.5 amu

• 108 amu

Which model is this?

• Dalton's model

• Thompson's plum pudding model

• Rutherford's nuclear model

• Bohr's planetary model

The protons in an atomic nucleus repel each other but are held together by the ____.

• electrons

• opposite charges

• strong nuclear force

• electrostatic repulsion

What is the name of the parent isotope in this nuclear equation?

• Carbon-6

• Beta

• Nitrogen-14

• Carbon-14

Tags

NGSS.HS-PS1-8

What is the name of the daughter isotope in this nuclear equation?

• Carbon-6

• Beta

• Nitrogen-14

• Carbon-14

Tags

NGSS.HS-PS1-8