Question

State the trends in the following properties of group 1 and group 2 elements down a group. 

i. Atomic radii

ii. Ionic radii 

iii. Ionization enthalpy 

iv. Electronegativity 

v. Standard reduction potential

Answer 1

Sr. no.	Property	Down a group
i	Atomic radii	Increases
ii	Ionic radii	Increases
iii	Ionization enthalpy	Decreases
iv	Electronegativity	Decreases
v	Standard reduction potential	Decreases