How many valence electrons does antimony have?
How many valence electrons does antimony have?
Answer:Antimony has five valence electrons.
To find out the number of valence electrons in an antimony atom,we need to look at the periodic table.
The position of antimony in the periodic table is in group VA.For main group elements,valence electrons are equal to the group number.So,antimony atom has five valence electrons in its valence shell or outermost energy level.
Again, antimony is an element of group 15.Now just consider the unit place digit from group number.You are getting 5 which is equal to the number of valence electrons in antimony.
Here is the another way to find out the valence electrons of antimony.
The symbol of antimony is Sb and the atomic number of antimony is 51.So,it has fifty one electrons totally.
Now write the electronic configuration of antimony.
Sb(51) =1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 4d10 5s2 5p3
=[Kr]4d10 5s2 5p3
[Tip: Complete filled d orbital is not considered as part of valence shell or energy level]
The valence shell is the outermost shell and the electrons that are present in valence shell is called valence electrons.
The valence shell or energy level can be identified by the highest value of principal quantum number,n.Here the highest value of n is 5.So,the valence shell is the 5th shell or energy level.
In 5th shell,we get five valence electrons.So each antimony has five valence electrons.
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