Question

what do these words mean:

1.atomic radii

2.ionization energy

3.electron gain enthalpy

4.valancy oxidation number

5.oxidation property

6.sheilding effect

please explain clearly and do not copy paste the answers...
the best answer would be marked as brianliest

Answer 1

Answer:

atomic radius of a chemical element is a measure of the size of its atom

Answer 2

Explanation:

atomic radius of element is measurements of the sizes