the valency of element sodium chloride is 1
1 sodium combines with 1 chloride to form sodium chloride and so the valency is '1' and not 4...
The valency of sodium is +1
Their valency is one. They both belongs to the third period.
Symbol: Cl-Valency: -1.
Sodium Chloride, NaCl, or table salt. The reactive, valency one sodium combines with the also reactive gas chlorine, and they become an ionic compound.
single valency. last orbit has 7 electrons.
Na+ valency is one
NaCl is neutral because sodium has a valency of +1 and chlorine has a valency of -1, meaning that when they form a bond the solution is neither positive or negative. Hence, 1 -1 = 0 In addition, NaCl is known as a neutralization solution and it is assumed by many as being a neutral solution.
Na2co3
The sodium cation is Na+. The valence of sodium is +1.
In the case of NaCl.the valency of sodium and chloride is two.so you dont have to specify it.but where as in Icl the valency different so you call it as iodine monochloride.to denote the presence of single chloride atom. Sodium chloride is an ionic compound, so you don't write 'mono' 'di' 'tri' etc. in the name. MgCl2 would simply be magnesium chloride, not magnesium dichloride. Covalent compounds such as ICl sometimes have 'mono' 'di' or 'tri' in their name, but ionic compounds don't. == == == == == ==