An atom of carbon has 4 electrons in its outermost shell, which means that
<span>its ionic charge is 4+ or 4-
</span>Si is in same group as carbon so its also 4+ or 4-
Germanium is 4+.
Sn is also 2+ or 4+
Pb is usually +2
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Its like weight but not. mass is the amount of matter in a substance.
C. boiling point
boiling point is the temperature at which all liquids change from liquid to gas
