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WorksheetsChapter 2 : atomic structure
Total questions: 20
Worksheet time: 10mins
What is the ground state of Brackett series
n=1
n=2
n=3
n=4
n=5
What is the region of spectrum for Pfund series
ultraviolet
visible
infrared
Choose the highest energy involved when an electron makes a transition
n=2 to n=1
n=4 to n=3
n=3 to n=1
n=4 to n=2
Which transition resulting in the shortest wavelength?
n=3 to n=1
n=4 to n=3
n=5 to n=2
n=5 to n=1
Energy is inversely proportional to
frequency
wave number
planck's constant
wavelength
Identify the orbital when n=3, l=1
3s
3p
3d
3f
The quantum number that determine the size of the orbital is
n
l
m
s
Determine the shape of the orbital
dxy
dxz
dyz
dx2-y2
Which of the following sets of quantum numbers is not allowed?
n=2, l=1, m=0, s= +1/2
n=3, l=0, m=1, s= +1/2
n=1, l=0, m=0, s= -1/2
n=3, l=1, m=-1, s= -1/2
Determine the shape of the orbital
dxz
dxy
py
px
Determine the shape of the orbital
dxy
dx2-y2
dxz
dz2
The energy of the electron in a hydrogen atom is determined by
the spin quantum number
the magnetic quantum number
the angular momentum quantum number
the principle quantum number
Degenerate orbital have
different energy
different shape of orbital
the same value of azimuthal quantum number
the same set of quantum numbers, n, l and m
The orbital diagram above did not obey
the Pauli's exclusion principle
the Hund's rule
the Aufbau principle
the Heisenberg's uncertainty principle
The orbital diagram above did not obey
the Pauli's exclusion principle
the Hund's rule
the Aufbau principle
the Heisenberg's uncertainty principle
An atom containing eight electrons in 3d orbital are arranged according to
Aufbau principle
Hund's rule
Heisenberg's uncertainty principle
De Broglie's Postulates
Electronic configuration of X atom is
1s2 2s2 2p6 3s2 3p6 4s2 3d2
Determine the number of electron in X atom if the azimuthal quantum number, l=0.
2
4
6
8
Electronic configuration of atom Y is
1s2 2s2 2p6 3s2 3p6 4s2 3d3
Determine the electronic configuration of Y3+
1s2 2s2 2p6 3s2 3p6 4s2
1s2 2s2 2p6 3s2 3p6 4s2 3d6
1s2 2s2 2p6 3s2 3p6 3d2
1s2 2s2 2p6 3s2 3p6 4s2 3d1
Z atom that has 22 proton number. Determine its electronic configuration when Z lose 4 electrons.
1s2 2s2 2p6 3s2 3p6 4s2 3d2
1s2 2s2 2p6 3s2 3p6 4s2 3d6
1s2 2s2 2p6 3s2 3p6 3d4
1s2 2s2 2p6 3s2 3p6
Choose the correct electronic configuration of A atom that has 29 number of protons.
1s2 2s2 2p6 3s2 3p6 4s2 3d9
1s2 2s2 2p6 3s2 3p6 4s1 3d10
1s2 2s2 2p6 3s2 3p6 4s2
1s2 2s2 2p6 3s2 3p6 4s2 3d5
