What are two properties of most nonmetals? (1) high ionization energy and poor electrical conductivity(2) high ionization energy and good electrical conductivity(3) low ionization energy and poor electrical conductivity(4) low ionization energy and good electrical conductivity

What are two properties of most nonmetals? The two properties of most nonmetals are high ionization energy and poor electrical conductivity. The answer is number 1. The rest of the choices do not answer the question above.

radioactive decay occurs in unstable atomic nuclei – that is, ones that don't have enough binding energy to hold

the nucleus together due to an excess of either protons or neutrons.

6.4 cm (max) - 25 cm (min)