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The neutral atom of potassium has the largest radius.
Na+ is smaller than Na.
Na has a higher atomic radius then Na+, since it still has it's outer electron (3s).
Look at your periodic table and you will see that K, potassium, must have the largest radius of these choices. You know that, K + and Na + will be small in radius because they have donated an electron to become positively charged cations.
NA
11...There are 11 electrons in Na1+ the only difference between Na1+ and Na is Na1+ has 1 more proton...there is no difference in electrons. Hope this helps :)
Na+is bigger
The neutral atom of potassium has the largest radius.
Potassium has the largest atomic radius.
Na+ is smaller than Na.
By the trend it is Na...(Bigger the farther left and bigger towords the bottom)
Na has a higher atomic radius then Na+, since it still has it's outer electron (3s).
Look at your periodic table and you will see that K, potassium, must have the largest radius of these choices. You know that, K + and Na + will be small in radius because they have donated an electron to become positively charged cations.
NA
Sodium, Na, is in group 1 of the periodic table, so to achieve a complete valence shell, it forms a cation with a charge of 1, Na1+.
F has one extra electron, which will goes in outer layer making F bigger. Na has one less electron, which will cause its size to get smaller.
Sodium(Na) has smaller radius than Bromine because Na has less number of shells.