Question

what property of an element determine its chemical behaviour
a. size of an element
b. valency of an element
c. molar mass of an element
d. none of these​

Answer 1

Answer:

Atomic Number

Explanation:

An element and its place within the periodic table are derived from this concept. When an atom is generally electrically neutral, the atomic number will equal the number of electrons in the atom, which can be found around the core. These electrons mainly determine the chemical behaviour of an atom.

Answer 2

Answer:

Answer

Explanation:

The property of an element that determines its chemical behaviour is: (b) valency of an element. - Actually, the chemical behaviour of an element is determined by its electronic configuration.