how does atomic radius vary Down a group
Rraftaar:
As the atomic number increases along each row of the periodic table, the additional electrons go into the same outermost shell; whose radiusgradually contracts, due to the increasing nuclear charge. ... Therefore, atomic radius decreases.Down the groups, atomic radiusincreases.
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Answered by
1
Hi,
On moving across a period, the valence shell remains the same and the electrons are increasing by one unit. As a result, the nuclear charge increases thus the atomic radius decreases.
On moving down a group, the shells go on increasing.As a result, the nuclear charge decreases.
Thus, the atomic radius increases down a group.
Hope this helps.
Cheers!
On moving across a period, the valence shell remains the same and the electrons are increasing by one unit. As a result, the nuclear charge increases thus the atomic radius decreases.
On moving down a group, the shells go on increasing.As a result, the nuclear charge decreases.
Thus, the atomic radius increases down a group.
Hope this helps.
Cheers!
As the atomic number increases along each row of the periodic table, the additional electrons go into the same outermost shell; whose radiusgradually contracts, due to the increasing nuclear charge. ... Therefore, atomic radius decreases.Down the groups, atomic radiusincreases.
Answered by
2
Heya friend!!
Rajdeep here....
When we go down a group, the atomic radius (atomic size) of elements increases.
Why??...
Because...
As we go down a group, the number of valence electrons remain the same, but the number of shells increase by one, thus the nuclear pull on the valence electrons gradually decreases, and the valence shell moves at great distance from the nucleus.
Hence, the atomic radius increases...
Thanks!!
Rajdeep here....
When we go down a group, the atomic radius (atomic size) of elements increases.
Why??...
Because...
As we go down a group, the number of valence electrons remain the same, but the number of shells increase by one, thus the nuclear pull on the valence electrons gradually decreases, and the valence shell moves at great distance from the nucleus.
Hence, the atomic radius increases...
Thanks!!
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