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IGCSE CHEMISTRY DOUBTS

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Meticulous:
Because Na is a group one metal. When it ionizes, it loses one outer electron to become stable, thus forming Na+ .

In addition, when chlorine gains an electron to become stable, it gains one electron (from Na atom), forming Cl- .

username:
because na has valency of +1
so it can only give 1 electron
and cl has valency of -1 so it can only accept an electron
+1+(-1)=0
so...
NaCl
hope u undertand
cheers mate!!!

Master_Key:

--- Quote from: **RoRo** on June 01, 2010, 11:08:10 am ---Alright, I've got a Chemistry doubt here:

Explain why the formula for the compound formed when Sodium and Chlorine react is NaCl and not NaCl2

Note: this is not in the past papers, it's from my chemistry textbook.

Thanks in advance :)

--- End quote ---

Na has a valency of +1 and Cl of -1

Na loses 1 atom nd Cl accepts 1.
so it NaCl

Mg loses 2  Cl accepts 1
MgCl2

Ivo:

--- Quote from: Keyur28 on June 01, 2010, 01:18:50 pm ---Na has a valency of +1 and Cl of -1

Na loses 1 atom nd Cl accepts 1.
so it NaCl

Mg loses 2  Cl accepts 1
MgCl2

--- End quote ---

LOLS!  I think you mean electron rather than atom!  :P

**RoRo**:
Thanks Guys...I understand the concept, but I didn't know how to put it in words, thanks so much :)

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