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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Question 1

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An isotope varies in the number of which particle?

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

What describes the electron shells?

What particle causes an atom to become negatively charged?

What is the relative mass of a neutron?

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

Mass of electron compared to proton is:

What is the approximate diameter of an atom?

What subatomic particle has a positive charge?

A positively charged ion is known as:

What particle has almost no mass compared to protons and neutrons?

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