Atoms (Angela 2A)

We use atomic __________to summarise the information related to the internal composition of an atomm.

What is the atomic symbol for silver?

An atom that has lost electrons is _________ ionised.

What charge do neutrons have?

The atomic ______ of an atom is the number of protons it contains in its nucleus.

What charge do electrons have?

What element has the atomic symbol of K?

A ________substance is made up of atoms from the same chemical element.

The net electric charge of an ionised atom is called the _________ and it can be positive or negative.

The number of _______ in the nucleus defines the type of chemical element and differentiates it from all other elements.

The process by which atoms gain or lose electrons is called __________.

What charge to protons have?

What is the atomic symbol of gold?

A _________ substance is made up of atoms from different chemical elements.

The __________ is the sum of the protons and neutrons in the nucleus of the atom.

The _________ of an element is the average mass of the mass numbers of its isotopes according to their relative abundance.

When an atom gains or loses electrons, we say that it has been ________.

An atom that has gained electrons is ____________ ionised.

An _________ of an element is an atom that has a different mass number to the standard of that element.