Question

Describe the principles of classification of elements in detail. ​

Answer 1

Answer:

Answer. In chemistry, an element is a pure substance which cannot be broken down by chemical means, consisting of atoms which have identical numbers of protons in their atomic nuclei. The number of protons in the nucleus is the defining property of an element, and is referred to as the atomic number.

Explanation:

Answer 2

Answer:

In chemistry, an element is a pure substance which cannot be broken down by chemical means, consisting of atoms which have identical numbers of protons in their atomic nuclei. The number of protons in the nucleus is the defining property of an element, and is referred to as the atomic number.

Explanation:

Atomic Radius

Electronegativity and Oxidation State

Electron Gain Enthalpy

Historical Development of the Periodic Table

Ionization Enthalpy and Valency

Metallic and Non-Metallic Character

Modern Periodic Table

Periodic Properties of Elements