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nubeer
 2 years ago
Best ResponseYou've already chosen the best response.3valancey is something or the spots left to be filled by electrons in a the last shell

nubeer
 2 years ago
Best ResponseYou've already chosen the best response.3if you have some question already u can tell that way would be easier to tell ..

mayankdevnani
 2 years ago
Best ResponseYou've already chosen the best response.1no, i have not any particular question just give some examples.

mayankdevnani
 2 years ago
Best ResponseYou've already chosen the best response.1@vishweshshrimali5 @ganeshie8

mayankdevnani
 2 years ago
Best ResponseYou've already chosen the best response.1ok. nubeer what is the valency of mg

Areesha.1D
 2 years ago
Best ResponseYou've already chosen the best response.01) Find out the electronic configuration. That is the number of electrons for that ion. Electronic config. for Mg is 2,8,2. 2) Now see how many electrons you get in the last orbit. 3) That number become your valency. Mg is +2. If the last is more than four then it means it is the negative ion and hence check how many electrons are needed to stabilize that ion. For eg. Chlorine is 2,8,7. Therefore to complete the octet, it needs 1 electron and hence valency of chlorine is 1. You need to see weather the number of electrons in last orbit is more than, less than or equal to 4. If more than it is a negative ion and its valency can be 1,2,3. If less than 4 than valency can be +1,+2,+3. And if equal to 4 than it is a metalloid which acts as a metal as well as a nonmetal. Eg. silicon. Valency of Na is +1 coz its electronic config. is 2,8,1. And now you find out for V as a practice. Valency is the combining capacity of an element and valence electrons are the number of electrons in the last orbit which are lost, gained or shared during the course of a reaction.

mayankdevnani
 2 years ago
Best ResponseYou've already chosen the best response.1just copy and paste @Areesha.1D

Areesha.1D
 2 years ago
Best ResponseYou've already chosen the best response.0@mayankdevnani yeah, i brought you information you needed, yet were incapable of finding yourself.

nubeer
 2 years ago
Best ResponseYou've already chosen the best response.3lol what she is said is right.. ok few things you should know is The valency of an element is the measure of electrons it needs or needs to loose to obtain a stable structure.. what is stable structure.. stable structure is when any atom have 8 electrons in the last shell.

nubeer
 2 years ago
Best ResponseYou've already chosen the best response.3so if we take Mg.. it has configuration 2,8,2 means it has 2 electrons in the outer most shell.. whether Mg can loose 2 electrons or gain 6 more.. it's easy to loos 2 rather then gaining 6 electrons so Mg preferes to loose.. so when Mg loose it will get a charge of+2 on it.

nubeer
 2 years ago
Best ResponseYou've already chosen the best response.3group 1 to 3 looses electrons these groups also called metals.. and the nonmetals looses electrons.

mayankdevnani
 2 years ago
Best ResponseYou've already chosen the best response.1ok..so what is the valency of cl

nubeer
 2 years ago
Best ResponseYou've already chosen the best response.3Cl.. 2,8,7.. tell me what u think its easy for him to loose or gain to achieve it's outer shell to be filled by 8 electrons.?

Areesha.1D
 2 years ago
Best ResponseYou've already chosen the best response.0@nubeer let him figure it out.

nubeer
 2 years ago
Best ResponseYou've already chosen the best response.3yes @Areesha.1D i have told him all the details won't tell answer will just walk him through..

nubeer
 2 years ago
Best ResponseYou've already chosen the best response.3hmmm nooo.. do u think he will just break 7 parts of it structure and not just having 1 more electron.. llook u have to think loosing and gaining is same it's not about tough.. think which is easier way to have 8 electrons in outer shell.. whther he can just gain 1 and have 8 or loose 7 electrons.

Areesha.1D
 2 years ago
Best ResponseYou've already chosen the best response.0@nubeer exactly! have fun llol

mayankdevnani
 2 years ago
Best ResponseYou've already chosen the best response.1hmmm, he can just gain 1 and have 8 .right

nubeer
 2 years ago
Best ResponseYou've already chosen the best response.3yes.. so its easy and when any atom gain an electron it get's a positive charge.. so what charge you think Cl will get?

mayankdevnani
 2 years ago
Best ResponseYou've already chosen the best response.1i don't know!!! plz tell me and give me another example and i can do this..k

nubeer
 2 years ago
Best ResponseYou've already chosen the best response.3look when electron is loose positive charge appears and when gains a negative charge appears.. so Cl gain 1 electron so it will get 1 charge.. u can take any if by any chance hypothetcially Cl gains 4 electron then it gets 4 charge and if it loose 7 electron so will get +7 charge.. get it? do for Al.

mayankdevnani
 2 years ago
Best ResponseYou've already chosen the best response.1so finally what is the valency of cl

nubeer
 2 years ago
Best ResponseYou've already chosen the best response.3i think i mentioned the valency in the last post.. did you read it? it has just gain 1

Areesha.1D
 2 years ago
Best ResponseYou've already chosen the best response.0omg _ @mayankdevnani put a BIT of effort in, look how well @nubeer explained !!!

mayankdevnani
 2 years ago
Best ResponseYou've already chosen the best response.1kkk...my chance to find the valency of al..plz wait

mayankdevnani
 2 years ago
Best ResponseYou've already chosen the best response.1al its electronic confugiration is dw:1354100607658:dw

nubeer
 2 years ago
Best ResponseYou've already chosen the best response.3have to make 8 in last shell.. so right now 3 in last shell so easy to loose or gain?

nubeer
 2 years ago
Best ResponseYou've already chosen the best response.3hmm how much have to gain to get 8? it would have to take 5 more .. so no.. its better to loose look group 13 will loose electrons.. and group 58 gains electrons.. made more easy for u.

nubeer
 2 years ago
Best ResponseYou've already chosen the best response.3now look in which group Al is in the periodic table.

mayankdevnani
 2 years ago
Best ResponseYou've already chosen the best response.113 is atomic number

nubeer
 2 years ago
Best ResponseYou've already chosen the best response.3nooo not atomic number.. do you know about groups in a periodic table and sorry.. my internet is a liittle slow.

nubeer
 2 years ago
Best ResponseYou've already chosen the best response.3so what about group numbers do you know of them?

mayankdevnani
 2 years ago
Best ResponseYou've already chosen the best response.1so its valency is 3

mayankdevnani
 2 years ago
Best ResponseYou've already chosen the best response.1but howz that...it loose its electrons

nubeer
 2 years ago
Best ResponseYou've already chosen the best response.3yes how many it loose? 3 .. and when any atome looses it gets a positive charge..

nubeer
 2 years ago
Best ResponseYou've already chosen the best response.3http://www.chem4kids.com/files/elem_pertable.html this is something about groups if you don't know.

mayankdevnani
 2 years ago
Best ResponseYou've already chosen the best response.1now its my chance give me some example

nubeer
 2 years ago
Best ResponseYou've already chosen the best response.3ok try Ba, Ca, Na , K, Cr, B, N, Br.. try any u want.

mayankdevnani
 2 years ago
Best ResponseYou've already chosen the best response.1electronic confugirationdw:1354101724985:dw so it looses electrons and have a positive charge of 2+ right!!

mayankdevnani
 2 years ago
Best ResponseYou've already chosen the best response.1electronic configurationdw:1354101886249:dw so it looses electrons and have a positive charge of 4+ right!!!

mayankdevnani
 2 years ago
Best ResponseYou've already chosen the best response.1i understand very nicely.. thnx @nubeer and @Areesha.1D

mayankdevnani
 2 years ago
Best ResponseYou've already chosen the best response.1and also give me medal for my hard work

nubeer
 2 years ago
Best ResponseYou've already chosen the best response.3i am glad.. you are welcome ..

Areesha.1D
 2 years ago
Best ResponseYou've already chosen the best response.0lol thank the Dear Lord above XD congratulations!
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