NEW
Font size
WorksheetsXI Chemistry Unit 3 Part 5B
Total questions: 10
Worksheet time: 5mins
Ionisation energy is expressed in _____.
J K-
J
V
KJ mol-1
The electronic configuration of Na+ is _____.
1s2 2s2 2p6 3s1
1s2 2s2 2p6
1s2 2s2 2p6 3s2
1s2 2s2 2p5
Pauling assumed that the radius of the ion having noble gas electronic configuration is inversely proportional to the effective nuclear charge felt at the periphery of the ion.
True
False
In a given shell the order of screening effect is _____.
s > p > d > f
f > d > p > s
s > p > f > d
f > p > s > d
Compared to the size of ionic radius of an anion, atomic radius of the anion is _____.
smaller
equal
greater
oval
In the periodic table, the atomic radius of elements _____ down the group.
decreases
increases
Initially increases then decreases
has no change
Which of the following orders of ionic radii is correct?
H- > H+ > H
Na+ > F- > O2-
F > O2- > Na+
None of these
Ionic radius of uni – univalent crystal can be calculated using _____ method.
Hund’s
Pauling’s
Avagadro’s
Slater’s
Pauling assumed that _____ present in a crystal lattice are perfect spheres.
particles
atoms
ions
molecules
The unit of ionic radii is _____.
m
No unit
Å
pm
