Atomic structure

Question 1

What is an atom?

Answer 1

The smallest particle of an element that contains electrons surrounding a nucleus that contains protons and neutrons

Question 2

What is a Molecule?

Answer 2

A group of 2 or more atoms chemically combined

Question 3

What is the atomic number?

Answer 3

The total number of protons in an atom

Question 4

What is the mass number?

Answer 4

The total number of protons and neutrons in an atom