In bonding, main group elements gain, lose, or share electrons to attain the of the nearest noble gas neighbor to them in the periodic table.

The correct answer is: electronic configuration

Explanation:

The electronic configuration of a chemical element or molecule or ion refers to the arrangement or distribution of the electrons in the orbitals around the nucleus of an atom.

The noble gases are the stable chemical elements belonging to the group 18 of the periodic table. These elements are highly unreactive as they have full valence electron shells.

According to the octet rule, all the chemical elements tends to form a chemical bond in order to attain the noble gas electronic configuration.

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.

b. accuracy of the data matters alot more than its number of digits, organization or amount of detail. quantitative observation is more accepted than the qualitative observation.