Elements. one type of atom a pure substance

true

Explanation:

this statement is true

Element:

A substance that cannot be decomposed into simpler substances by chemical means, and is made up of atoms all with an identical number of protons. (general) A fundamental component of a composite entity

true is the answer : )

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called