before and after reaction with chlorine gas to give sodium chloride, NaCl?
2007-01-14 15:32:29 · 4 answers · asked by Emma 1 in Science & Mathematics ➔ Chemistry
Sodium has one valence electron. It is an alkali metal in group 1A. Group 1A will form ions with a 1+ charge when they give up their lone valence electron. This is what makes all of the elements in group 1A so reactive. None of the alkali metals is found in its free state in nature because they are so reactive.
Chlorine has 7 valence electrons. It will readily accept the lone valence electron from sodium. Once the electron is transfered they become ions: Na 1+ and Cl 1-
The electrical attraction will hold these two ions together.
2007-01-14 15:41:17 · answer #1 · answered by physandchemteach 7 · 0⤊ 0⤋
1
2007-01-14 15:46:04 · answer #2 · answered by mitu 2 · 0⤊ 0⤋
Before: 1 becoz it's in group 1 metal
after: 0 bcoz it has already 'donated' its electron to cloride to form NaCl
2007-01-14 15:36:39 · answer #3 · answered by Anonymous · 0⤊ 0⤋
42!
2007-01-14 15:41:14 · answer #4 · answered by someone on earth 3 · 0⤊ 0⤋