Question

What is the smallest particle of an element ? Write the formula of an oxygen molecule​

Answer 1

Explanation:

atom

atomAn atom is the smallest particle of an element, having the same chemical properties as the bulk element. The first accurate theory explaining the nature of matter was Dalton's Atomic Theory: 1. All matter is composed of atoms, and atoms are indivisible and indestructible.

The molecule is O2 because it takes 2 O atoms to make a molecule of oxygen. These types of elements are called diatomic elements, because the elementexists in its pure form as a molecule composed of 2 atoms of the element. There are 7 diatomic elements: Hydrogen (H2)