In 2012, the median income of retiree aged units (with no earnings from work) age 65 and over with pensions and Social Security was more than twice the income of aged units receiving only Social Security.
EXAMPLE:: Assign a formal charge to the nitrogen in the compound shown below. 1  Nitrogen is in group five; thus, it has five valence electrons. 2  Number of non-bonding electrons: there are no non-bonding electrons, so this is zero.
Formal charges in ozone and the nitrate anion. In chemistry, a formal charge (FC) is the charge assigned to an atom in a molecule, assuming that electrons in all chemical bonds are shared equally between atoms, regardless of relative electronegativity.