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A metallic element forms an ion with uni...

A metallic element forms an ion with unit charge. The ion has 10 electrons and 12 neutrons . What is the number of electrons, protons and neutrons in its neutral atom ? Represent the atom with atomic number and mass number.

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(a) Metals form cations
(b) The number of electrons in neutral atom based on the type of ion metals formed
(c) The atomic number of the metal
(d) The calculation of mass number from atomic number and number of neutrons
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