Define the terms: i proton neutron iii electron. b An atom X has a proton number of 19 and relative atomic mass of 39. i How many electrons, protons and neutrons are there in atom X? ii How many electrons will there be in the outer electron shell of atom X? iii What is the electronic configuration of atom X?
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Define the terms: i proton neutron iii electron. b An atom X has a proton number of 19 and relative...
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