D is the only choice here that is appropriate given neutrons' lack of charge
Answer:
The particles in a liquid are close together (touching) but they are able to move/slide/flow past each other.
Explanation:
Hydrogen i suppose is the right one
Answer:
DUPLET RULE: The tendency of an atom to acquire an outer most shell of two electrons is called duplet rule. OCTET RULE: The tendency of an atom to acquire an outermost shell of eight electrons is called the octet rule.
K, ca, sc is the right answer. Take a look at table S of your chemistry reference table.