The best and most correct answer among the choices provided by the question is the first choice "carbon has many allotropes"
Organic compound, any of a large class of chemical compounds in which one or more atoms of carbon<span> are covalently linked to atoms of other elements, most commonly </span>hydrogen<span>, </span>oxygen<span>, or </span>nitrogen. The few carbon-containing compounds not classified as organic include carbides, carbonates, and cyanides<span>. </span> I hope my answer has come to your help. God bless and have a nice day ahead!
After ionization, sodium gains a net positive charge cuz sodium loses its 1 valence electron to gain the nearest stable octet which is neon{Ne}. Hope it helps
