Chemistry C2: Atoms, compounds and Isotopes

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In an element, what does the mass number tell you?
The total number of protons + neutrons
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In an element, what does the atomic number tell you?
The atomic number tells you the number of protons. In a neutral atom the total number of electrons is always the same as the number of protons in the nucleus.
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What the mass of a proton, neutron and electon
Proton = 1 Neutron = 1 Electron = Virtually 0 [https://www.google.co.uk/search?q=what+is+the+mass+of+an+electron&oq=what+is+the+mass+of+an+electron&aqs=chrome..69i57j0l5.13935j0j7&sourceid=chrome&es_sm=122&ie=UTF-8]
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What are compounds?
Compounds are formed two of more elements are chemically combined.
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Can compounds be separated into the original elements again.
It is difficult, but yes
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What are isotopes?
Isotopes are different atomic forms of the same element, which have the same number of protons but a different number of neutrons
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Isotopes have the same ____ number but a different ___ numbers
Isotopes have the same atomic number but a different mass numbers
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Other cards in this set

Card 2

Front

In an element, what does the atomic number tell you?

Back

The atomic number tells you the number of protons. In a neutral atom the total number of electrons is always the same as the number of protons in the nucleus.

Card 3

Front

What the mass of a proton, neutron and electon

Back

Preview of the front of card 3

Card 4

Front

What are compounds?

Back

Preview of the front of card 4

Card 5

Front

Can compounds be separated into the original elements again.

Back

Preview of the front of card 5
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