GENERAL KNOWLEDGE

Detailed explanation-1: -Each orbital holds two electrons which differ in a property known as spin. Orbital: A region of space within an atom where an electron in a given subshell can be found. Any orbital can hold a maximum of 2 electrons with opposite spin.

Detailed explanation-2: -Pauli’s Exclusion Principle states that no two electrons in the same atom can have identical values for all four of their quantum numbers. In other words, (1) no more than two electrons can occupy the same orbital and (2) two electrons in the same orbital must have opposite spins (Figure 46(i) and (ii)).

Detailed explanation-3: -Q. Assertion :An orbital cannot have more than two electrons and they must have opposite spins. Reason: No two electrons in an atom can have same set of all the four quantum numbers as per Pauli’s exclusion principle.

Detailed explanation-4: -The Pauli Exclusion Principle states that, in an atom or molecule, no two electrons can have the same four electronic quantum numbers. As an orbital can contain a maximum of only two electrons, the two electrons must have opposing spins.

Detailed explanation-5: -Another important property of orbitals is that each orbital can hold a maximum of 2 electrons. Based on the amount of energy in each orbital they are arranged into what are referred to as electron shells or energy shells, which contain one or more orbitals.