the tendency to exhibit -3 oxidation state decreases down the group of 15th group elements. this is because of the increase in the atomic size and metallic character . BUT METALLIC CHARACTER MEANS ELECTROPOSITIVITY . THEN WHY DOES THE TENDENCY TO EXHIBIT -3 OXIDATION STATE DECREASES??

Open in App

Solution

If a substance has high metallic character, then it has the tendency to lose electron due to which it will form positive charge ion.
So in 15 group, if the metallic character is increasing down the group, then it means tendency to gain electron decreases down the group. Thus, tendency to exhibit -3 oxidation state decreases as we go down. Bismuth hardly show any compound in-3 oxidation state.

Suggest Corrections

Similar questions

(i) Electropositive nature of the element(s) increases down the group and decreases across the period
(ii) Electronegativity of the element decreases down the group and increases across the period
(iii) Atomic size increases down the group and decreases across a period (left to right)
(iv) 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 elements with atomic numbers 3 to 9.

Which is the element with the smallest atomic size

Q. Question 48 (a)
(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 increases 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 elements with atomic numbers 3 to 9.

Name the most electropositive element among them

Q. Question 48 (b)
(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 increases 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 elements with atomic numbers 3 to 9.

Name the most electronegative element.

Give scientific reasons:

1. Atomic size increases down the group.

2. Metallic character decreases from left to right in a period.

3. Elements in the same group show same valency.

Join BYJU'S Learning Program