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what is the mean of atomicity? what is the mean of lsotopes? what is a metalloid​

Sagot :

Answer:

Explanation:

atomicity is the number of atoms in a molecule of a gas.

metalloid is an element that has both metallic and nonmetallic properties, as arsenic, silicon, or boron.

isotopes is members of a family of an element that all have the same number of protons but different numbers of neutrons.