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WorksheetsPeriodic Table
Total questions: 10
Worksheet time: 30mins
The graph shows all the successive ionisation energies of an element P.
The electronic configuration of P is 1s2 2s2 2p6 3s2 3p4
P is found in the third period of the periodic table.
P is expected to form a basic oxide
The size of Na+ > Mg2+ > Al3+. Which of the followings explain(s) this trend?
Effective nuclear charge increases
The number of electrons is the same but the number of protons increases
The number of electrons and protons increases.
Going down a group in the periodic table;
radius become smaller
electronegativity decreases.
ease of cation formation increases.
first ionisation energy increase
The atomic radius of the d-block elements do not change significantly because
effective nuclear charge does not change.
the number of protons in the nucleus increases.
the electrons are added into inner d orbitals
The table shows the first, second, third and fourth ionisation energies of elements Y and Z.
Give the true statement about Y and Z.
Both elements belong to the same group
Both elements can form ions with +2 charge
The size of Y atom is smaller than that of Z atom
Two elements L and M have the following electronic configuration
L : 1s2 2s2 2p6 3s2 3p1
M :1s2 2s2 2p6 3s2 3p4
LM2
LM4
L3M2
L2M3
Which of the following is the group and period for the element with the following electronic configuration: 1s2 2s2 2p6 3s2 3p4?
Group 2, Period 3
Group 6, Period 3
Group 14, Period 3
Group 16, Period 3
Which of the following arrangements shows the order of increasing ionic radius?
K+ < Cl- < S2- < P3-
K+ < P3- < S2- < Cl-
P3- < S2- < Cl- < K+
Cl- < S2- < P3- < K+
Which of the following groups contains a basic, an amphoteric and an acidic oxide?
SiO2, SO3, Cl2
MgO, Al2O3, SO3
Na2O, SiO2, P4O10
MgO, Al2O3, Na2O
Which one of the following elements has the highest second ionisation energy?
13Al
12Mg
11Na
14Si
