Radioactivity and Nuclear Reactions

What occurs in the decay of radioactive nucleus?

• The nucleus absorbs another nucleus

• The nucleus absorbs at least one form of radiation

• The nucleus always splits into two equal fragments

• The nucleus emits at least one form of radiation

Tags

NGSS.HS-PS1-8

What type of decay is shown here?

• alpha decay

• beta decay

• gamma decay

Tags

NGSS.HS-PS1-8

Plutonium (of mass number 240 and proton number 94) decays with the emission of alpha-particle. What is the new proton number and mass number of the new nucleus?

• proton number = 92, mass number = 236

• proton number = 92, mass number = 240

• proton number = 91, mass number = 240

• proton number = 91, mass number = 236

Tags

NGSS.HS-PS1-8

The radioactive nucleus Rubidium (of mass number 87 and proton number 37) decays with the emission of a beta-particle. How many protons and neutrons are left in the nucleus?

• protons = 37, neutrons = 49

• protons = 37, neutrons = 50

• protons = 38, neutrons = 49

• protons = 38, neutrons = 87

Tags

NGSS.HS-PS1-8

Which process involves the splitting of a large nuclei?

• alpha decay

• beta decay

• nuclear fusion

• nuclear fission

Tags

NGSS.HS-PS1-8

What type of nuclear reaction occurs in the Sun?

• nuclear fission

• alpha decay

• nuclear fusion

• beta decay

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Nuclear power plants work by

• fusion

• fission

• fusion and fission

• coal

Tags

NGSS.HS-PS1-8

Very high temperature and kinetic energy is required for

• fusion

• fission

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Which atoms combine together during fusion reaction on the Sun?

• hydrogen and lithium atoms

• hydrogen and helium atoms

• hydrogen and carbon atoms

• hydrogen atoms only

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8