#3
2 neutrons wait im wrong its 6 i believe


EDIT : its 8 look on wiki
Last edited by a_man at Oct 30, 2007,
#4
how many protons does it have? That's how many neutrons it has.
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#6
8 i tought
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#9
An oxygen atom has 8 protons and electrons, but can have any number of neutrons. Oxygen atoms with differing numbers of neutrons from one another are isotopes of eachother.
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#11
Quote by mr_bill0ws
An oxygen atom has 8 protons and electrons, but can have any number of neutrons. Oxygen atoms with differing numbers of neutrons from one another are isotopes of eachother.

correct ...ish
#12
Quote by mr_bill0ws
An oxygen atom has 8 protons and electrons, but can have any number of neutrons. Oxygen atoms with differing numbers of neutrons from one another are isotopes of eachother.

I think the most common isotopes have 8 neutrons (avg atomic weight ~15.999 if I remember right). But he is right.

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#13
8, but it can change (like mr_bill0ws said)

To find neutrons you take the atomic weight from the atomic number
i.e. for oxygen...

8
O
16.00

The top is number of protons (atomic number), the O is the symbol and the 16 (mass number) is protons + neutrons.

If you have a mass number that's not a whole number (i.e. carbon is 12.01), you just round to the closest whole number.
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