Answer to Question #224081 in Biology for Thandi

Question

Define the terms below:

(1) Atom

(2) Chemical bond

(3) Compound

(4) Covalent bond

(5) Element

Answer 1

1) An atom is the smallest unit of ordinary matterthat forms a chemical element.

2) Chemical bond is the physical phenomenon of chemical substances being held together by attraction of atoms to each other through sharing, as well as exchanging, of electrons -or electrostatic forces.

3) A compound is a substance that contains atoms of two or more different elements, and these atoms are chemically joined together.

4) Covalent bond, in chemistry, the interatomic linkage that results from the sharing of an electron pair between two atoms.

5) An element is a substance that cannot be broken down into any other substance.