II. QUANTUM VIEW OF THE ATOM

What is the correct electron configuration of Iron? (Fe=26)

• 1s²2s²2p⁶3s²3p⁶4s²3d⁶

• 1s²2s⁴2p⁶3s²3p⁶4s²3d⁴

• 1s²2s²2p⁷3s²3p⁶4s²3d⁵

• 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰

This rule means that no 2 electron could have the same set of quantum numbers.

• Hund's Rule

• Aufbau Rule

• Pauli Exclusion Principle

• Electron Configurarion

How many valence electrons does Carbon (#6) have?

• 6

• 5

• 4

• 3

All types of atomic orbitals can contain a maximum of how many electrons?

• one

• two

• three

• four

Which of the following statement is true?

• All s subshells consist of a single s orbital.

• All p subshells consist of a three p orbital.

• Both statement.

• Neither of the two.

What is the angular momentum number (ml) of the 4d subshell?

• -1,-2,-3,-4

• -2,-1,0,1,2

• 2,1,0,-1,-2

• -4,-3,-2,-1

Bohr proposed that the electron in a hydrogen atom moved in any one of a series of circular orbits around the ________ ?

• shell

• subshell

• quantum number

• nucleus

Which of the following set of quantum number is wrong?

• n=1

  l=0

  ml=0

  1s

• n=2

  l=1

  ml=-1,0,1

  2p

• n=2

  l=2

  ml=-2,-1,0,1,2

  2s

• n=3

  l=2

  ml=-2,-1,0,1,2

  3d

This is the shape of the subshell.

• n

• l

• ml

• ms

Which of the following element has similar property with Sr?

• Rb

• Cs

• Mg

• Y