313166 Write the number of pairs in which size of first element or ion is higher.
As compared to IInd out of following nine pairs
\(({\rm{O,S}}),({\rm{He}},{\rm{Ne}}),({\rm{Kr}},{\rm{Ne}}),\)
\(\left( {{\text{Na}},{\text{N}}{{\text{a}}^ + }} \right),\left( {{\text{Cl}},{\text{C}}{{\text{l}}^ - }} \right),\left( {{{\text{I}}^ - },{\text{C}}{{\text{l}}^ - }} \right).\)
\(\left( {{\rm{L}}{{\rm{i}}^ + },{\rm{N}}{{\rm{a}}^ + }} \right),({\rm{Li}},{\rm{Na}}),\left( {{\rm{Li}},{\rm{N}}{{\rm{a}}^ + }} \right)\)

313167 Among the elements Ca, Mg, P and Cl, the order of increasing atomic radii is :

313168 The increasing order of atomic radii of the following elements is:
(i) C (ii) O (iii) F (iv) Cl (v) Br

313169 Zr (Z = 40) and Hf (Z = 72) have similar atomic and ionic radii because of :

313166 Write the number of pairs in which size of first element or ion is higher.
As compared to IInd out of following nine pairs
\(({\rm{O,S}}),({\rm{He}},{\rm{Ne}}),({\rm{Kr}},{\rm{Ne}}),\)
\(\left( {{\text{Na}},{\text{N}}{{\text{a}}^ + }} \right),\left( {{\text{Cl}},{\text{C}}{{\text{l}}^ - }} \right),\left( {{{\text{I}}^ - },{\text{C}}{{\text{l}}^ - }} \right).\)
\(\left( {{\rm{L}}{{\rm{i}}^ + },{\rm{N}}{{\rm{a}}^ + }} \right),({\rm{Li}},{\rm{Na}}),\left( {{\rm{Li}},{\rm{N}}{{\rm{a}}^ + }} \right)\)

313167 Among the elements Ca, Mg, P and Cl, the order of increasing atomic radii is :

313168 The increasing order of atomic radii of the following elements is:
(i) C (ii) O (iii) F (iv) Cl (v) Br

313169 Zr (Z = 40) and Hf (Z = 72) have similar atomic and ionic radii because of :

313166 Write the number of pairs in which size of first element or ion is higher.
As compared to IInd out of following nine pairs
\(({\rm{O,S}}),({\rm{He}},{\rm{Ne}}),({\rm{Kr}},{\rm{Ne}}),\)
\(\left( {{\text{Na}},{\text{N}}{{\text{a}}^ + }} \right),\left( {{\text{Cl}},{\text{C}}{{\text{l}}^ - }} \right),\left( {{{\text{I}}^ - },{\text{C}}{{\text{l}}^ - }} \right).\)
\(\left( {{\rm{L}}{{\rm{i}}^ + },{\rm{N}}{{\rm{a}}^ + }} \right),({\rm{Li}},{\rm{Na}}),\left( {{\rm{Li}},{\rm{N}}{{\rm{a}}^ + }} \right)\)

313167 Among the elements Ca, Mg, P and Cl, the order of increasing atomic radii is :

313168 The increasing order of atomic radii of the following elements is:
(i) C (ii) O (iii) F (iv) Cl (v) Br

313169 Zr (Z = 40) and Hf (Z = 72) have similar atomic and ionic radii because of :

313166 Write the number of pairs in which size of first element or ion is higher.
As compared to IInd out of following nine pairs
\(({\rm{O,S}}),({\rm{He}},{\rm{Ne}}),({\rm{Kr}},{\rm{Ne}}),\)
\(\left( {{\text{Na}},{\text{N}}{{\text{a}}^ + }} \right),\left( {{\text{Cl}},{\text{C}}{{\text{l}}^ - }} \right),\left( {{{\text{I}}^ - },{\text{C}}{{\text{l}}^ - }} \right).\)
\(\left( {{\rm{L}}{{\rm{i}}^ + },{\rm{N}}{{\rm{a}}^ + }} \right),({\rm{Li}},{\rm{Na}}),\left( {{\rm{Li}},{\rm{N}}{{\rm{a}}^ + }} \right)\)

313167 Among the elements Ca, Mg, P and Cl, the order of increasing atomic radii is :

313168 The increasing order of atomic radii of the following elements is:
(i) C (ii) O (iii) F (iv) Cl (v) Br

313169 Zr (Z = 40) and Hf (Z = 72) have similar atomic and ionic radii because of :