6.1

Question 1

Nucleus

Answer 1

central part of an atom, made up of protons and neutrons; roundish structure inside a cell that acts as the control centre for the cell. Plural = nuclei.

Question 2

Protons

Answer 2

positively charged particles found in the nucleus of an atom

Question 3

Neutrons

Answer 3

particles with no electrical charge that are found in the nucleus of an atom

Question 4

Electrons

Answer 4

negatively charged, very light particles in an atom. Electrons move around the nucleus of the atom.