Question

drag the item from the item bank to its corresponding match.
this is a group of protons and neutrons in the center of all atoms.
heat transfer by electromagnetic waves.
this is the period of time it takes for a radioactive sample to decay to half of its original amount.
atoms of the same element with varying number of neutrons.
isotopes nucleus half - life radiation

Explanation:

1. The nucleus is the central part of an atom containing protons and neutrons.
2. Radiation is heat transfer via electromagnetic waves.
3. Half - Life is the time for a radioactive sample to decay to half its original amount.
4. Isotopes are atoms of the same element with different neutron numbers.

Answer:

1. Nucleus
2. Radiation
3. Half - Life
4. Isotopes