The median Social Security benefit was $16,295 for men and $11,999 for women in 2012, AARP found. Retirement savings. Just under a third (30 percent) of retirees receive income from either a traditional pension or take withdrawals from a retirement savings account such as a 401(k) or individual retirement account.
The Sodium atom. 1  The Na atom has an equal number of electrons and protons (11 e-and 11 p+). 2  This atom too is unstable because the outer valance shell of electrons has only one electron in it. 3  To be stable the outer shell of electrons should have eight electrons.
The Reaction between Sodium and Chlorine. Chlorine has 7 electrons in its outer shell. It is in group 7 of the periodic table. When an atom of chlorine reacts it will gain one electron from sodium. The outer shell of chlorine will then have 8 electrons and be full. The chloride ion will have an extra electron and therefore an extra negative charge (shown as a - sign). What is an Ionic Bond? The electrostatic force of attraction between the oppositely charged ions is called an ionic bond. The electrons are shown as dots and crosses to show how they have moved during the reaction. In reality all electrons are identical. The balanced chemical equation for the above reaction is. sodium + chlorine sodium chloride.