Quantum Numbers and Atomic Orbitals for Elctrons in Atoms

Which of the following are the solutions to quantum numbers?

• Einstein's Mass Energy Relation

• Hamiltonian Operator

• Heisenberg's Uncertainty Principle

• Schrodinger's Wave Equation

How is an orbital is defined in the quantum mechanical model of the atom?

• circular path traveled by a proton around an orbital

• circular path traveled by an electron around an orbital

• region of the most probable proton location

• region of the most probable electron location

Which principle is referred to by the statement, "No two electrons in an atom can have the same set of n, l,m_l,and m_s quantum numbers"?

• Aufbau Principle

• Bohr's Theory

• Hund's Rule

• Pauli Exclusion Principle

Which set of quantum numbers n, l, m_l, m_s is invalid?

• 1,1,0,-1/2

• 2,0,0,+1/2

• 3,1,0,+1/2

• 4,3,+2,-1/2

How many orbitals are there with principal quantum number n=4?

• 1

• 4

• 9

• 16

What is the value of the quantum number l for a 5p orbital?

• 1

• 2

• 3

• 4

Which of the following quantum number gives the shape of the atomic orbital or subshell?

• n

• l

• m_l

• m_s

What is the range of the azimuthal quantum number, l?

• 0 to n

• 0 to m_s

• 0 to n-1

• 0 to m_s-1

How many different orientations can s orbitals have in space?

• 1

• 3

• 5

• 7

Which set of quantum numbers uniquely defines one of the electrons in an atomic orbital with n =2 and l = 0?

• n = 2, l = 0, m_l = 1, m_s = +1

• n = 2, l = 0, m_l = 0, m_s = +1/2

• n = 2, l = 0, m_l = 0, m_s = +1

• n = 2, l = 0, m_l = 1, m_s = +1/2