2.2 Modern Understanding Of The Atom (GCSE Chemistry)

The following is a GCSE Chemistry test covering '2.2 Modern Understanding Of The Atom'

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What are atoms of the same element with different numbers of neutrons called?

A positively charged ion is known as:

What subatomic particle revolves outside the nucleus?

What is the relative mass of a neutron?

An isotope varies in the number of which particle?

In a neutral atom, how does the number of electrons compare to the number of protons?

What subatomic particles make up most of an atom`s volume?

Subatomic particles are smaller than:

What happens if an atom loses electrons?

Which part of the atom makes up the majority of the atomic mass?

How many times smaller is the nucleus compared to the atom?

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