Since isotopes of the same element have identical numbers and arrangements of electrons, they have essentially identical ... In an atom having many electrons most of the electrons lie in the interior energy levels, but some of the electrons do lie in the outermost levels. ... They are chemically quite unreactive because the number and arrangement of electrons in their valence shells ... The sodium atom loses its single outermost electron to the well-populated outer shell of chlorine.
|Title||:||Cells and Energy|
|Author||:||Richard A. Goldsby|
|Publisher||:||Macmillan Publishing Company - 1977-01-01|