Classifying Nuclear Reactions

Mass defect is ________.

• the energy released when an atom forms from its subatomic particles
• the mass produced during a nuclear reaction
• the mass that is converted to energy during a nuclear reaction
• the energy absorbed when an atom forms from its subatomic particles

Tags

NGSS.HS-PS1-8

Binding energy is ________.

• the energy released when an atom forms from its subatomic particles
• the mass produced during a nuclear reaction
• the mass that is converted to energy during a nuclear reaction
• the energy absorbed when an atom forms from its subatomic particles

Tags

NGSS.HS-PS1-8

Isotopes have ________.

• different number protons and neutrons
• the same number protons and the same number of neutrons
• the same number of neutrons but different number of protons
• the same number of protons but different number ofneutrons

Tags

NGSS.HS-PS1-8

The n/p ratio of stable isotopes becomes larger than 1, when the atomic number is larger than ________.

• 18
• 20
• 24
• 10

Tags

NGSS.HS-PS1-8

The only element whose most stable isotope has n/p < 1 is ________.

• hydrogen
• helium
• oxygen
• carbon

Tags

NGSS.HS-PS1-8

Given the following half-lives, which of the following isotopes is the least stable?

• 0.001s
• 0.92s
• 72s
• 56 s

Tags

NGSS.HS-PS1-8

How long will it take for a 5.0 g tritium sample to decay down to 0.313 g? The half-life of tritium is 12 years.

• 96 yrs
• 24 yrs
• 48 yrs
• 12 yrs

Tags

NGSS.HS-PS1-8

Which is the lightest among the following particles?

• neutron
• beta particle
• proton
• alpha particle

Which of the following is the heaviest particle?

• alpha particle
• neutron
• beta particle
• deuterium

Which of the following is able to penetrate the easiest through human tissue?

• alpha rays
• beta rays
• gamma rays
• neutrons