Topic 5 Electronic Configuration(2)

Which quantum numbers gives the shell to which the electron belongs?

• n

• l

• m

• s

What is the range of Azimuthal Quantum Number, l?

• 0 to n

• 0 to s

• 0 to n-1

• 0 to s-1

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 = 0, s = +½

• n = 2, l = 0, m = 1, s = +½

• n = 2, l = 0, m = 1, s = +1

• n = 2, l = 0, m = 0, s = +1

Which element has the ground state electronic configuration 1s²2s²2p⁶3s²3p⁵?

• Si

• P

• Cl

• S

Tags

NGSS.HS-PS1-1

For the principal quantum number n = 4, it is possible to have:

• only s, p and d orbitals

• only s, p, d and f orbitals

• only s and p orbitals

• only an s orbital

"No two electrons in an atom can have the same set of n, l, ml and ms quantum numbers." This is a statement of:

• Bohr's theory

• the aufbau principle

• the Pauli exclusion principle

• Hund's rule

The maximum number of electrons that can have principal quantum number, n = 3, and spin quantum number, s = -1/2, is

• 5

• 7

• 9

• 11

When the azimuthal quantum number has the value of 2, the number of orbitals possible are

• 7

• 5

• 3

• 0

How many electrons are there in the third shell (principal energy level) of the atom with atomic number 23?

• 8

• 10

• 11

• 13

Tags

NGSS.HS-PS1-1

Which of the following is the correct order for electrons filling in orbitals?

• 2p, 3s, 3p, 3d

• 3p, 4s, 3d, 5s

• 3s, 3p, 4s, 3d

• 4s, 3d, 4p, 4d

Tags

NGSS.HS-PS1-1