Periodicity is best defined as A. <span>the fact that elements increase in atomic mass in a regular way the repeating nature of physical and chemical properties. This is evident in the periodic table where elements belonging to one column has the same properties.</span>
The answers is that minerals are not organic.
Answer:
<em>Oxygen has 8 protons in the nucleus while nitrogen only has 7. A bonding pair will experience more attraction from the oxygen's nucleus than from nitrogen's, and so the electronegativity of oxygen is greater.</em>