On moving from top to bottom in a group valency of elements _______
decreases
increases
remain same
first increases 1 to 4 then further decreases 4 to zero

As we move across a period from left to right, metallic character ______ (decreases/ increases)

As we move across a period from left to right, nonmetallic character________ (decreases/increases)

Metals have few electrons in their valence shell while non-metals generally have more electrons in their valence shell. Metallic character is closely related to atomic radius and ionisation enthalpy. Metallic character increases from top to bottom in a group and decreases from let to right in a period of periodic table. metallic character is inversely related to electronegativity of element. Q. 3 N_0//2 atoms of X_((g)) are converted it into X_((g))^(+) by energy E_(1) , 2 N_0//3 atoms of X_((g)) are converted it into X_((g))^(-) by energy E_(2) . hence, ionisation potential and electron affinity of X_((g)) are: ( N_(0) =Avogadro's number)

In a group, the atomic size_________ from top to bottom. (increases / decreases).

Moving left to right in the second period, number of valence electrons ……....... [increases from 1 to 4/ increases from 1 to 7]

Metals have few electrons in their valence shell while non-metals generally have more electrons in their valence shell. Metallic character is closely related to atomic radius and ionisation enthalpy. Metallic character increases from top to bottom in a group and decreases from let to right in a period of periodic table. metallic character is inversely related to electronegativity of element. Q. The electronegativity of the following elements increase in the order:

The element at the bottom of a group would be expected to show ________metallic character than the element at the top. (less/more)

On moving down the group from F to I , which of the following properties decreases ?

The electropositive first increases from B to Al and then decreases from Al to Tl down the group because of

How valency of elements changes : Down the group from top the bottom