Assertion : The energy of an electron is largely determined by its principal quantum number. Reason : The principal quantum number n is a measure of the most probable distance of finding the electron around the nucleus.

Assertion : The energy of an electron is largely determined by its pri

1.	Assertion : The energy of an electron is largely determined by its principal quantum number. Reason : The principal quantum number n is a measure of the most probable distance of finding the electron around the nucleus.
Answer» If both assertion and reason are true and the reason is the correct explanation of the assertion If both assertion and reason are true butreason isnot the correct explanation of the assertion If assertion is true but reason is false If the assertion and reason both are false Solution :We know that principal quantum number REPRESENT the main energy level or energy SHELL. SINCE each energy level is associated with a definite amount of energy, this quantum NUMBERS determines to a large extent energy of an electron. It also determines the average DISTANCE of an electron around the nucleus . Therefore both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.