Jumlah elektron dalam suatu unsur yang memiliki nomor atom 19 dan nomor massa 39 adalah?, 17, 18, 19, 20, 21, Berdasarkan gambar tersebut, unsur Karbon memiliki..., 12 elektron dan 6 neutron, 6 proton dan 12 neutron, 18 elektron dan 12 proton, 6 proton dan 12 elekton, 6 elektron dan 6 neutron, Atom Y memiliki 18 proton dan 22 neutron. Nomor massa unsur Y adalah?, 38, 40, 18, 22, 4, Manakah unsur yang memiliki 11 proton dan 13 neutron?, Nomor massa dan jumlah neutron unsur Z berturut-turut adalah 226 dan 138. Berapakah nomor atom unsur Z?, 226, 48, 138, 88, 116
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Nomor atom
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Asrifaturofinga
Secondary
Chemistry
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