1 c) Atomic Structure

Number of protons

Subatomic particle found in shells outside the nucleus with a relative mass of 1/1836 and a relative charge of 1-.

Atoms of the same element with the same number of protons but a different number of neutrons.

Number of protons and neutrons

Two or more atoms covalently bonded together with a fixed number of atoms.

Subatomic particle found in the nucleus of an atom with a relative mass of 1 and no charge.

Subatomic particle found in the nucleus of an atom with a relative mass of 1 and a relative charge of 1+.

The weighted average mass of the isotopes of the element, relative to the mass of 1/12th of a C-12 atom.

Smallest piece of an element that can still be recognised as that element.

Molecule that contains two atoms (HOBrFINCl)

Same number of electrons

Same as mass number

Contains protons and neutrons in an atom.

Small object can be referred to as atoms, molecules, ions or the subatomic particles.

Same as atomic number

The mass of one particular isotope of the element, relative to the mass of 1/12th of a C-12 atom.

Where electrons are found outside the nucleus (also called energy levels).

An average which takes into account the percentage abundance of the components.