Quiz for Quantum numbers

Q1: How many quantum numbers are required to describe an electron in an atom?

A. 2 B. 3 C. 4 D. 5

Q2: Which quantum number indicates the energy level of an electron?

A. Angular momentum quantum number B. Principal quantum number C. Magnetic quantum number D. Spin quantum number

Q3: The quantum number that describes the shape of an orbital is?

A. Principal quantum number (n) B. Magnetic quantum number (m) C. Angular momentum quantum number (l) D. Spin quantum number (s)

Q4: Which quantum number describes the orientation of an orbital?

A. Spin quantum number (s) B. Magnetic quantum number (m) C. Principal quantum number (n) D. Angular momentum quantum number (l)

Q5: Possible values of spin quantum number are?

A. +1/2 and -1/2 B. 0 and 1 C. 1/2 and 3/2 D. 0, ±1

Q6: Which quantum number can have values 0 to n-1?

A. Angular momentum quantum number (l) B. Principal quantum number (n) C. Magnetic quantum number (m) D. Spin quantum number (s)

Q7: For n=3, what are the possible values of l?

A. 0, 1, 2 B. 1, 2, 3 C. 0, 2, 3 D. 1, 2, 4

Q8: Magnetic quantum number m can have values?

A. -l to +l B. 0 to n-1 C. 1/2 and -1/2 D. Any integer

Q9: Spin quantum number s describes?

A. Direction of electron spin B. Energy level C. Orbital shape D. Orbital orientation

Q10: Which principle states that no two electrons in an atom can have the same set of quantum numbers?

A. Pauli exclusion principle B. Aufbau principle C. Hund’s rule D. Heisenberg uncertainty principle

Q11: What is the value of l for an s-orbital?

A. 0 B. 1 C. 2 D. 3

Q12: How many orbitals are present for l = 1?

A. 3 B. 1 C. 5 D. 7

Q13: Which quantum number determines the size of an orbital?

A. Principal quantum number (n) B. Angular momentum quantum number (l) C. Magnetic quantum number (m) D. Spin quantum number (s)

Q14: What does the uncertainty principle state?

A. Position and momentum cannot be simultaneously known exactly B. Energy levels are discrete C. Electrons have wave nature D. Electrons have spin

Q15: How many electrons can a single orbital hold?

A. 2 B. 1 C. 3 D. 4

Q16: The magnetic quantum number m is related to?

A. Orientation of orbital B. Energy of electron C. Spin of electron D. Size of orbital

Q17: Spin quantum number values indicate?

A. Two possible spin directions B. Energy level C. Orbital shape D. Orbital size

Q18: What does the principal quantum number n represent?

A. Main energy level B. Spin direction C. Orbital shape D. Orbital orientation

Q19: Which quantum number ranges from -l to +l?

A. Magnetic quantum number (m) B. Principal quantum number (n) C. Spin quantum number (s) D. Angular momentum quantum number (l)