why are metals more likely to loses valance electrons
Metals generally have low numbers of valence electrons. Since they want to have a full outer shell, it is easy for them to lose their few electrons, either in an ion or an electron cloud) so that they have a full outer level left. These specific elements can be volatile and react quickly and violently at times because they lose those electrons so easily. Also, it takes less energy for metals to lose their electrons, so it is easier.
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