Elements

An element with atomic number 30 is a (A) Representative element (B) Transition element (C) d-block element (D) -block element

A trace element is an element which

The Mw of a oxide of an element is 44. The Ew of the element is 14. The atomic weight of the element is

An element has Z = 7 . What is the valency of the element ? Also name the element.

The element with atomic number 35 is the element of

An element A decays into an element C by a two