Chemistry

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  • Created by: Jessica8
  • Created on: 27-02-17 22:01
what is an atom
the smallest part of an element
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what is an element
a substance containing only one type of atom
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what is a molecule
particle made up from atoms joined together
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what is a compound
substances made from different elements chemically bonded together
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what is the atomic number
number of protons in an atom
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what is an electron
a negative charge particle. orbits the nucleus of an atom
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what is the electronic structure
the arrangement of electrons in the shell
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what are energy levels
the region an electron occupies surrounding the nucleus inside an atom
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what is an ion
an electrically charged particle containing different numbers of protons and electrons
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what is an isotope
different forms of a particular element
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what is the mass number
number of protons + number of neutrons in an atom
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what are protons
a positive charged particle found in the nucleus of an atom
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what is the nucleus
central part of an atom containing protons and neutrons.
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what are neutrons
a neutron particle is found in the nucleus of an atom
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what is R.A.M
the average mass of elements taking into account the mass and amount of each isotope it contains on a scale where the mass of C12 atom is 12
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what is a catalysis
substance that speeds up a reaction with out getting used yp
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Other cards in this set

Card 2

Front

what is an element

Back

a substance containing only one type of atom

Card 3

Front

what is a molecule

Back

Preview of the front of card 3

Card 4

Front

what is a compound

Back

Preview of the front of card 4

Card 5

Front

what is the atomic number

Back

Preview of the front of card 5
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