Chemistry Basic Terminology

Question 1

What is a particle?

Answer 1

A particle is the smallest unit of a substance.

Question 2

What is a substance?

Answer 2

A substance is a unique collection of a specific particle.

NOTE: Air is not a substance (Oxygen is)

Question 3

What is a mixture?

Answer 3

A combination of 2 or more substances.

Question 4

What are the three types of particles?

Answer 4

An atom, ion and a molecule.

Question 5

What are the 4 substances?

Answer 5

1. Ionic - metal and non metal atoms
2. Molecular
3. Covalent
4. Metallic (not a real chemical substance though)

Question 6

What is a covalent compound?

Answer 6

A shared pair of electrons

Question 7

What is an ionic compound?

Answer 7

A compound formed by a metal and a non-metal element where the metal gains an electron and a non-metal loses an electron, making the atoms of the element charged (one positive and one negative).