Question

Explain the trend in ionic radius down group 1 of the periodic table:
Down group 1, ionic radius _____ because number of shell increases, shielding effect _____.
Therefore, attraction of nucleus to the remaining electron ______. _______ energy needed to remove the remaining electrons down the group 1.
Size of ion ______.​

Answer 1

Down group 1, the ionic radius increases because the number of shells increases, shielding effect increases.

Therefore, the attraction of the nucleus to the remaining electron decreases. Ionization energy needed to remove the remaining electrons down the group Decreases.

Size of ion increases.