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.
For N, we are counting 4 electrons (4 bonding electrons, no nonbonding electrons). Since N is in. Group VA, we have one less electron than N should have, and so it has a +1 charge. As a check, your formal charges should add up to the charge of the atom (â1 for nitrate).