Year 9 stuff (e.g ions and isotopes) Flashcards

1
Q

What is an isotope?

A

Isotopes are atoms with the same number of protons but different numbers of neutrons.

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2
Q

An atom has 13 protons and 14 neutrons. What is its mass number?

A

27

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3
Q

What is a molecule?

A

A molecule is something made from two or more atoms that are held together by chemical bonds.

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4
Q
A
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