NCERT Exemplar Solutions of Chapter 3 Classification of Elements and Periodicity in Properties for Class 11 Chemistry Multiple Choice Questions …
NCERT Solutions for Class 11 Chemistry Chapter 3: Classification of Elements and Periodicity in Properties Q-1) What is the basic …
Introduction As per the modern periodic table, there are 118 elements that are known to man today, of which 24 …
Define Valency The combining capacity of an atom is known as its valency. The number of bonds that an atom …
What is Electronegativity? The tendency of an atom in a molecule to attract the shared pair of electrons towards itself …
Electron Gain Enthalpy Definition Electron gain enthalpy is sometimes also referred to as Electron affinity although there is a minute …
What is Ionization Enthalpy? The enthalpy change associated with the removal of the first electron from an isolated gaseous atom in …
What are Noble Gases or Inert Gases? The elements in Group 18 of the periodic table are known as the …
What is Ionic Radius? Ionic radius is the distance from the nucleus of an ion up to which it has an …
What is Periodic Table? A periodic Table is the arrangement of all the elements in the known universe based on …
What is Periodic Table? A periodic Table is the arrangement of all the elements in the known universe based on …
S-block elements are those elements in which the last electron is present in the s-orbital. In the periodic table. They …
Electron Configuration of an element tells us how electrons are filled inside various orbitals of the atom. The distribution of …
Electronic Configuration is the arrangement of electrons in orbitals around an atomic nucleus. Electronic Configuration of a molecule refers to …
Everything in the universe is composed of basic elements, and at their smallest level, these elements are atoms. There are …
All matter in our environment is made up of basic units known as elements. Initially, only 31 chemical elements were …
Periodic Classification of Elements refers to the arrangement of elements on the basis of the periodic repetition of their properties. …
Periodic categorization of elements is a way of grouping elements based on their characteristics, such as keeping elements that are …
What is Atomic Size? Atomic size is the distance between the centre of the nucleus of an atom and its …
The modern periodic table is based on the law that the properties of an element are a periodic function of …
