Chlorine (Cl) forms a salt when it is combined with a metal. This element belongs in <span>halogens.
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Answer:
protons
Explanation:
An element, by definition, always has the same number of protons. Sodium, element 11, has 11 protons. Anything with 11 protons is a sodium atom, regardless of the number of neutrons, electrons, or politicians.
Answer:
the answer is D
Explanation:
percentage composition= mole of the substance divided by the total molar mass of the compound multiplied by 100.
This noble gas is argon (Ar), because its third energy level is full.
Answer:
40/220 ×100=18.6 is all I got I know that by heart so um yea
Explanation:
