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Study the word list: GCSE Physics: Radioactivity 1

Key words for GCSE Physics

	atom	An atom is the smallest particle of an element that can exist.
	proton	A proton has a positive charge and is found in the nucleus of an atom.
	neutron	A neutron has no charge and is found in the nucleus of an atom.
	electron	An electron is part of an atom that has a negative charge. Electrons are found in shells.
	nucleus	The nucleus is the centre of an atom and has a positive charge.
	nuclei	Nuclei is the plural of nucleus.
	isotope	An isotope is an atom that contains the same number of protons but different numbers of neutrons.
	source	The source of something is the place where it comes from.
	alpha	Alpha particles contain two protons and two neutrons.
	beta	A beta particle is a high-speed electron.
	particle	A beta particle is a high-speed electron.

Use the list: GCSE Physics: Radioactivity 1

Learn this spelling list using the 'Look, Say, Cover, Write, Check' activity.

Look	atom
Say
Cover	Look again
Write
Check

Look, Say, Cover, Write, Check

How to use:

Look and read the word.

Say the word. Click the speaker icon.

Cover the word.

Write the word.

Check your spelling.

atom

proton

neutron

electron

nucleus

nuclei

isotope

source

alpha

beta

particle

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Test yourself using the 'Listen and Spell' spelling test.

Start the Listen and Spell Test

An ____ is the smallest particle of an element that can exist.

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to repeat the word.