Atoms and Elements

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  • Created by: Abbiewk
  • Created on: 04-04-14 17:23
What is an element?
A substance which is only made of 1 pure type of atom
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What is a compound?
when elements react
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what 3 things do atoms contain?
protons, electrons and neutrons
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what 2 subatomic particles have no charge?
electrons and protons
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how do you know the amount of protons / electrons?
the number of protons in an atom of an element is called its atomic number
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how do you know the amount of neutrons?
the mass number
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Explain the pattern in the outer shells in the electronic structure
the atoms in the groups have a pattern. the group of which the atom is in, is the amount of electrons in the outer shell. eg...group 2 - there would be 2 electrons in the outer shell
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what group in the periodic table contains the noble gases?
Group 0 / Group eight
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which is the only atom in group 0 which does not have 8 electrons and how many does it have?
helium has an atomic number of 2
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Other cards in this set

Card 2

Front

What is a compound?

Back

when elements react

Card 3

Front

what 3 things do atoms contain?

Back

Preview of the front of card 3

Card 4

Front

what 2 subatomic particles have no charge?

Back

Preview of the front of card 4

Card 5

Front

how do you know the amount of protons / electrons?

Back

Preview of the front of card 5
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