Explain the trend in general of iſ electronaffinity ii] electronegativity of elements -
on moving down a group. Give reasons for the change in each periodic trend.

Explain the trend in general of iſ electronaffinity ii] electronegativity of elements - on moving from left to right across a period

Explain the trend in general of ionisation potential of elements on moving down a group. Give reasons for the change in the periodic trend in each case.

Explain the trend in general of ionisation potential of elements : on moving down a group. Give reasons for the change in the periodic trend in each case.

Explain the trend in general of ionisation potential of elements on moving from left to right across a period

With reference to the alkali metals in Group 1 [IA] & the halogens in 17 [VIIA] explain the trend in ionisation potential, electron affinity and electronegativity on moving down the groups in the periodic table.

In the periodic table the trend of density of elements down the group generally

Explain the following a) Electronegatively of elements increase on moving from left to right in the periodic table. b) Ionisation enthalpy decrease in a group from top to bottom.

Give reasons why ? The oxidizing nature of elements increases on moving from left to right along a period in the periodic table.

Explain the terms give 2 examples of each (i) macronutrients, (ii) micronutrients, (iii) toxic elements

(a) Electropositive nature of the element(s) increases down the group and decreases across the period (b) Electronegativity of the element decreases down the group and increases across the period (c) Atomic size increase down the group and decreases across a period (left to right) (d) Metallic character increases down the group and decreases across a period On the basis of the above trends of the periodic table, answer the following about the electron with atomic number 3 to 9 (a) Name the most electropositive element among them (b) Name the most electronegative element (c) Name of the element with smallest atomic size (d) Name the element which is a metalloid (e) Name the element which shows maximum valency.