Atoms and elements

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  • Created by: Rubyblu
  • Created on: 10-04-18 11:30
atoms
the smallest particles of matter that cannot be broken down further by chemicals means
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nucleus
the positively charged center of the atom consisting of protons and neutrons
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electrons
the smallest of the particles that make up an atom, they carry a negative charge
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protons
a subatomic particle found in the nucleus of every atom, they carry a positive charge
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neutrons
a subatomic particle found in the nucleus of atoms, they carry no charge
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element
contains only one kind of atom
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groups
the columns on the periodic table
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periods
the rows on the periodic table
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atomic/proton number
the amount of protons in the nucleus of an atom
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charge of an atom
an atom has no charge as there the same amount of electrons and protons are carried
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nucleon/mass number
the total number of protons and neutrons in the nucleus of an atom
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identifying an atom
can be done by the number of protons in it
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isotopes
atoms of the same elements which have the same proton number but a different nucleon number
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radioisotopes
radioactive isotopes (e.g. carbon-14)
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alpha particles
made up of 2 protons and neutrons
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beta particles
electrons moving at high speed (can be positive or negative)
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gamma rays
high energy rays
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radioisotope uses
to check for leaks, to treat cancer and to kill germs and bacteria
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electron shells
orbitals that surround the nucleus filled with electrons
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distribution of electrons
the first shell can hold 2 electrons and the rest can hold dup to 8 electrons
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period number
tells you how many shells there are
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group number
tells you how many electrons are on the outer shell
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valency electrons
the electrons located on the outer shell
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unreactive atoms
have full outer shells
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electron arrangement/distribution, electronic structure/configuration
how the electrons are arranged
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Card 2

Front

the positively charged center of the atom consisting of protons and neutrons

Back

nucleus

Card 3

Front

the smallest of the particles that make up an atom, they carry a negative charge

Back

Preview of the back of card 3

Card 4

Front

a subatomic particle found in the nucleus of every atom, they carry a positive charge

Back

Preview of the back of card 4

Card 5

Front

a subatomic particle found in the nucleus of atoms, they carry no charge

Back

Preview of the back of card 5
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