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.
Sodium is a highly reactive soft greyish metal in its pure form, which is never found in nature because of said reactivity. Anyhow, to task: sodium has eleven (11) electrons, in a 2-8â1 configuration, with that one lonely valence electron in the outermost orbital/shell, accounting for the high degree of reactivity. In the nucleus are eleven (11) protons and twelve (12) neutrons. The only stable isotope of sodium is 24Na, which can only be formed thru nucleosynthesis at temperatures approaching 600 megakelvins.