Nuclear chemistry

What is the nucleus of an atom made of?

• Positive protons and neutral neutrons

• Negative electrons and positive protons

• Neutral electrons and positive neutrons

• Negative neutrons and neutral protons

What force holds the nucleus together?

• Gravitational force

• Electromagnetic force

• Strong force

• Weak force

What is the study of changes to the nucleus of an atom called?

• Organic Chemistry

• Nuclear Chemistry

• Physical Chemistry

• Analytical Chemistry

Who discovered that uranium emitted radiation in 1896?

• Marie Curie

• Albert Einstein

• Henri Becquerel

• Isaac Newton

Marie Curie is most famous for her discoveries involving what?

• Electricity

• Magnetism

• Radioactivity

• Gravity

What is radioactivity?

• The emission of radiation

• The absorption of light

• The reflection of sound

• The conduction of heat

What are particles released due to the disintegration of an atom's nucleus called?

• Electrons

• Radiation

• Protons

• Neutrons

What is the process called when an unstable nucleus loses energy and matter by emitting radiation?

• Nuclear fusion

• Radioactive decay

• Chemical reaction

• Photosynthesis

What is considered unstable in a nucleus?

• A nucleus with more protons than electrons

• A nucleus with a different number of neutrons than protons

• A nucleus with equal numbers of protons and neutrons

• A nucleus with more electrons than protons

What is released during alpha radiation?

• An alpha particle

• A beta particle

• Gamma rays

• A neutron