Chemistry-Atomic structure

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what is the relative mass of protons and neutrons?
1. they are very small.
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what is the relative mass of an electron?
it is negligible because it is so small
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what are the charges of the proton neutron and electron in the central nucleus?
proton,+(+1) charge electron,-(-1)charge neutrons,no charge (0)
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what charge does the overall atom have?
no electrical charge, because the number of electrons in the shell is equal to the number of protons in the nucleus.
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what is the name of the number of protons in an atom?
proton number or atomic number
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what is the mass number?
the number of nucleons (protons+neutrons)
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what is the number of neutrons
mass number - proton number
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what are isotopes?
different forms of the same element. same number of proton and different number of neutrons
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what is a neutral atom?
has the same number of protons and electrons. they have a zero charge.
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what do the number of electrons in the outer shell determine?
the way the atom behaves in chemical reactions
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Card 2

Front

what is the relative mass of an electron?

Back

it is negligible because it is so small

Card 3

Front

what are the charges of the proton neutron and electron in the central nucleus?

Back

Preview of the front of card 3

Card 4

Front

what charge does the overall atom have?

Back

Preview of the front of card 4

Card 5

Front

what is the name of the number of protons in an atom?

Back

Preview of the front of card 5
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