Atomic Structure

Question 1

Protons

Answer 1

Positive particles inside the nucleus

Question 2

Neutrons

Answer 2

Neutral particles inside the nucleus. Slightly heavier than protons

Question 3

Electrons

Answer 3

Negative particles orbiting the nucleus. Much lighter than protons and neutrons

Question 4

Nucleons

Answer 4

Combined protons and neutrons

Question 5

Atomic mass number

Answer 5

The number of nucleons in an atom

Question 6

Atomic number

Answer 6

The number of protons in an atom. Determines the atomic symbol

Question 7

Atomic symbol

Answer 7

A shorthand notation for an atom, e.g. H is Hydrogen

Question 8

Isotopes

Answer 8

Atoms of the same element (so containing the same number of protons) with a different number of neutrons

Question 9

Charge to mass ratio

Answer 9

The charge of a particle (in Coulombs) divided by its mass (in kilograms), in C/kg. AKA specific charge

Question 10

Specific charge

Answer 10

The charge of a particle (in Coulombs) divided by its mass (in kilograms), in C/kg. AKA charge to mass ratio