Atomic structure

Choose the highest energy involved when an electron makes a transition

• n = 4 to n = 3
  

• n = 2 to n = 1
  

• n = 4 to n = 2
  

• n = 3 to n = 1
  

Which of the following represents an electron in 3p orbital?

• n = 3, l = 0, m = +1, s = +1/2

• n = 3, l = 2, m = +2, s = +1/2

• n = 3, l = 1, m = +1, s = +1/2

• n = 3, l = 0, m = 0 , s = +1/2

Electronic configuration of copper atom is  $1s^22s^22p^63s^23p^64s^13d^{10}$ .  Determine the number of electron in copper atom at its ground state if the azimuthal quantum number, l is 0

• 9

• 7

• 6

• 10

Maximum number of electron that can occupy 3d orbital is

• 2

• 6

• 8

• 10

The energy of the electron in a hydrogen atom is determined by ;

I. the principle quantum number

II. the magnetic quantum number

III. the electron spin quantum number

• I only

• I and II

• II and III

• I, II and III

Degenerate orbital have

I. the same value of the azimuthal quantum number, l

II. the same energy

III. the differences values of the s quantum number but the same set of quantum numbers, n, l and m

• I only

• I and II

• II and III

• I, II and III

What is the total number of atomic orbitals in an atom with the principal quantum number n =3

• 3
• 13
• 14
• 18

The electronic configuration of the ₇N^3- ion is

• 1s² 2s² 2p³
• 1s² 2s² 2p⁶
• 1s² 2s² 2p³ 2p⁶ 3s² 3p²
• 1s² 2s² 2p³ 2p⁶ 3s² 3p⁶

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the orbital designation corresponding to the quantum numbers : n=4, l = 2, m=0

• 2s
• 2p
• 4p
• 4d

After filling up the 3p orbital , what kind of orbital must electron occupy?

• a spherically-shaped orbital
• a dumb-bell shaped orbital
• either 4s or 3d orbital
• an orbital of lower energy than 3p