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Worksheetsclassification of element
Total questions: 14
Worksheet time: 11mins
Arrange the following orbitals in order of increasing energy.
3dxy, 2px, 3dyz, 4pz, 3pz, 4dxy, 3py, 2py, 3s, 4s, 2s, 1s
1s , 2s , 2px, 2py , 3s , 3pz, 3py , 4s , 3dxy, 3dyz , 4pz , 4dxy
1s, 2s, 2px, 2py, 3s, 3pz, 3py, 3dxy, 3dyz, 4s, 4pz, 4dxy,
1s < 2s < 2px, 2py < 3s < 3pz, 3py < 4s < 3dxy, 3dyz < 4pz < 4dxy
1s< 2s < 2px, 2py < 3s < 3pz, 3py < 3dxy, 3dyz < 4s < 4pz < 4dxy
Fill in the blank:
According to Aufbau principle;
Electron must occupy orbitals of ______(a)__________ energy first before
________(b)___________ energy.
(a) higher
(b) lower
(a) lower
(b) higher
(a) singly
(b) paired
(a) paired
(b) singly
spdf notation of Cl with 17 proton number is
(letak spacebar,huruf kecil)
(a)
The actual electronic configuration of copper is 1s2 2s2 2p6 3s2 3p6 4s1 3d10 which is differs from the expected configuration. This due to stability of ----- filled 3d orbital
FULLY
PARTIALLY
HALF FILLED
The electronic configuration of 26Fe2+ is
(LETAK SPACEBAR & HURUF KECIL)
(a)
Three elements A, B and C have 3, 4 and 2 electrons respectively in their outermost shell. Write the valence electronic configuration and determine the group to which they belong in the Periodic Table.
A : ns2 nd1
Group : 3
B : ns2 np2
Group : 14
C : ns2
Group : 12
B : ns2 np4
Group : 16
which elements belong to the same group
B, C,D,G
E, F
D,F
Identify the non-metals among the elements.
A
C,D,G,F
A, B, E
Ion M2- has the electronic configuration of 1s2 2s2 2p6 . Determine group , period and block of element M
Group : 18
Block : p
Period : 2
Group : 2
Block : s
Period : 3
Group : 14
Block : p
Period : 2
Write the electronic configuration of element B that are in d-block , period 5 and group 12
(a)
Determine number of valence electron for X atom with electronic configuration of 1s2 2s2 2p6 3s2 3p6 4s2 3d5
(a)
Write the valence electronic configuration for X atom with electronic configuration of 1s2 2s2 2p6 3s2 3p6 4s2 3d5
(a)
Determine highest energy orbital for X atom with electronic configuration of 1s2 2s2 2p6 3s2 3p6 4s2 3d5
(a)
Determine number of inner electrons for X atom with electronic configuration of 1s2 2s2 2p6 3s2 3p6 4s2 3d5
(a)
