atomic structure Flashcards by Bayliss Flynn

Q

what is the relative mass of a proton

A

1

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Q

what is the relative mass of a neutron

A

1

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Q

what is the relative mass of a electron

A

0.0005

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Q

what is the relative charge of a proton

A

+1

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Q

what is the relative charge of a neutron

A

0

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Q

what is the relative charge of a electron

A

-1

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Q

what does number of electrons mean

A

number of protons

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Q

what does the mass number tell you

A

how many protons and neutrons there are

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Q

how do you find the number of neutrons

A

subtracts the mass number from the atomic number

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Q

what is it called when atoms join together

A

a molecule

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Q

what is the nucleus made of

A

protons and neutrons

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