How to determine the charge of a polyatomic ion?

1) this is the structure in the cell nucleus that houses a cell's genetic information

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

All of the following are part of the biosphere except