Question

Rewrite the following statements after correction, if necessary
(i) Elements in the same period have equal valency
(ii) The metallic character of elements in a period increases gradually on moving from left to right.

Answer 1

Answer:

Valence shell.Since valency depends upon the valence electrons so they have same valency. Elements in the same group have same valancy. This is because the elements have same number of valance electrons. This phenomenon is called Periodicity.

B. From right to left across a period, metallic character increases because the attraction between valence electron and the nucleus is weaker, enabling an easier loss of electrons. Metallic character increases as you move down a group because the atomic size is increasing. ... This causes an increase in metallic character