The sodium atom has 1 electron in its outermost shell. When forming an ion it donates this electron giving it an overall charge of +1 (having lost a negative charge).
Chlorine atoms have 7 electrons in their outermost shells. When forming an ion these are more likely to take an electron from another atom to form a complete octet (gaining a negative charge) thus it becomes -1.
Both atoms will gain or loose 1 electron, hence why they have the same valency, however the electrovalency depends on whether this charge becomes positive or negative. Hope this helps!
1 sodium combines with 1 chloride to form sodium chloride and so the valency is '1' and not 4...
coagulating power of an electrolyte is proportional to its valency. Since valence of Fe3+ is higher compared to that of k+ , it is preferred over potassium chloride
-1 valency
-1 hco3-1 all bases are - and most if not all the ones with hydrogen in front are -1 for example- hydrogen sulfate (hso4-1)or hydroxide (oh-1)
The valency of sulfur is 2-. The valency of sulfur is 2-. The valency of sulfur (S) is +2
the valency of element sodium chloride is 1
Symbol: Cl-Valency: -1.
single valency. last orbit has 7 electrons.
1 sodium combines with 1 chloride to form sodium chloride and so the valency is '1' and not 4...
Copper Chloride
we usually use roman numerals in writing names of compounds of transitional elements which have more than one valency . for example we have two compounds of iron chloride , iron(II)chloride and iron(III)chloride depending on the valency of iron in each compound.
Their valency is one. They both belongs to the third period.
AgCl It always has a valency of +1, though it is a transition metal
coagulating power of an electrolyte is proportional to its valency. Since valence of Fe3+ is higher compared to that of k+ , it is preferred over potassium chloride
Aluminium has a valency of 3 and forms a compound called aluminium chloride with chlorine . It is stable . But phosphorus has a valency of 3 and 5. Hence , it is called phosphorous trichloride and phosphorous pentachloride.
Valence = 1..
Aluminium borate does not have a valency. borate and aluminium have different valencies as aluminium and borate are separate elements. aluminium's valency is +3 and borates is -3