Respuesta :
Quantum numbers are:
- (A) n = 1 ⇒ n -1
- (B) n = 2 ⇒ n = 2
What do we mean by quantum numbers?
- Quantum numbers are used in quantum physics and chemistry to describe the values of conserved quantities in the dynamics of a quantum system.
- Quantum numbers are eigenvalues of operators that commute with the Hamiltonian and their corresponding eigenspaces—quantities that can be known with precision at the same time as the system's energy.
- A specification of all of the quantum numbers of a quantum system, when combined, fully characterizes the system's basis state and can, in theory, be measured together.
Quantum numbers:
(A) n = 1
- The electron in a hydrogen atom with n=1 is in its ground state; if the electron is in the n=2 orbital, it is in an excited state.
- For a given n value, the total number of orbitals is n2.
- Angular Momentum (Secondary, Azimunthal) l = 0,..., n-1 Quantum Number
(B) n = 2
- The n = 2 states begin to fill up as we move to larger atoms, adding electrons one at a time.
- Because there are four different values for (l, m), each with two allowed spin states, the n = 2 states can hold up to eight electrons.
- The n = 2 shell includes all states with a quantum number of n = 2.
Therefore, Quantum numbers are:
- (A) n = 1 ⇒ n -1
- (B) n = 2 ⇒ n = 2
Know more about quantum numbers here:
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