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Chemistry, 04.11.2020 01:00 cat706

Which two pairs are isotopes (W)with neutron 6 and proton 6
(x) with neutron 7 and proton 7
(y) with neutron 8 and proton 6
(z) with neutron 8 and proton 8

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Which two pairs are isotopes (W)with neutron 6 and proton 6
(x) with neutron 7 and proton 7
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