Chemistry

Question 1

Atom?

Answer 1

The smallest unit of element. An atom has a central nucleus which is surrounded by one or more electrons.

Question 2

Nucleus

Answer 2

Central part of the atom. Located in the centre of an atom. Composed of protons and neutrons. Most of the atoms mass is contained inside the nucleus. The rest of the atom weighs almost nothing.

Question 3

Proton

Answer 3

It is a particle that is positively charged. Found within an atomic nucleus.

Question 4

Particle

Answer 4

Is a part the makes up an atom. Particles make up atoms

Question 5

Neutron

Answer 5

Uncharged particle. It is not positive or negatively charged. It’s neutral. Found within an atomic nucleus

Question 6

Electron

Answer 6

Negatively charged particle. Can be located in shells that surround an atoms nucleus.

Question 7

Ion

Answer 7

Add or takeaway an electron therefore changing its’ charge. E.g positive or negative.

Question 8

Ionisation

Answer 8

The energy change that occurs when an atom loses an electron to form a positive ion