Atoms of the same element with different numbers of electrons.

Atoms of the same element with different numbers of neutrons.

Atoms of the same element with different numbers of protons.

__________  have the same chemical properties but different physical properties.

Carbon-14  has {{}} more neutrons than carbon-12.

atoms with different numbers of neutrons but same number of protons

Match the words about atoms with the definitions. 

A sample of naturally occurring lithium is 92.4% Li-7 and 7.6% Li-6. What is its relative atomic mass?

Of these four atoms, which two are isotopes?

Key stage 4

Isotopes

Which subatomic particle can be lost or gained when elements react?

What is the relative mass and charge of a neutron?

An element has 11 protons and 12 neutrons. What is its atomic mass?

An element an atomic number of 13 and a mass number of 27. How many protons, neutrons and electrons does it have?

there are no charged particles in an atom.

they have the same number of neutrons and electrons.

they have the same number of protons and electrons.

they have the same number of protons and neutrons.