Radioactivity - Starter

What is radioactivity?

• The spontaneous decay of a stable nucleus

• The spontaneous decay of an unstable nucleus

• The spontaneous decay of a neutral nucleus

• The spontaneous decay of a stable electron cloud

How many types of radiation does the nucleus emit during decay?

• 1

• 2

• 3

• 4

Select ALL the types of radiation.

• Alpha particle

• Beta particle

• Gamma rays

• Neutron rays

Which can be a type of radiation emitted during radioactive decay?

• Alpha rays

• Beta rays

• Gamma Rays

• Neutron flares

During radioactive decay, the structure and mass change.

• True

• False

What type of nuclear reaction takes places inside nuclear power stations?

• nuclear emission

• nuclear fission

• nuclear fusion

• radioactive stabilization

There are nuclear reactions occurring the core of the

• Moon

• Mars

• Sun

• Jupiter

Which equation is related to nuclear reactions?

• E = F x S

• V = D $\div$ T

• P = W $\div$ T

• E = m x c^2

What will you learn about in today's lesson?

• nuclear fusion , nuclear fission and nuclear radiation

• nuclear activity, molecular fusion, thermal energy

• energy transformation, power and work

• the definition of radioactivity