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WorksheetsPERIODIC PROPERTIES
Total questions: 20
Worksheet time: 12mins
______ group contains member of halogen family.
a) 18th
b) 17th
______ is a relative periodic property.
a) electron affinity
b) electronegativity
the number of periods and groups in the periodic table is ______
a) 18,7
b) 7,18
the basics of modern periodic table is ____
a) atomic number
b) atomic mass
On what basis were the elements arranged in Dobereiner's triads ?
atomic number
atomic mass
electron number
number of electrons
How many traids did Dobereiner identify among the known elements?
5
3
2
1
Which element has n=2 and s2 p6 configuration?
He
O
Ne
Ni
Where would you locate the element with electronic configuration 2, 8 in the Modern Periodic Table?
(a) Group 8
(b) Group 2
(c) Group 18
(d) Group 10
Name the metal which is in liquid state.
Iron
Mercury
Zinc
Aluminium
As you move down the periodic table atoms get bigger. This is because ____________.
The atoms have more mass.
The atoms have more protons.
The atoms have more energy levels
The atoms have more neutrons
What is meant by isolectronic?
Group of atoms or ions that have the same electronic configuration
Group of atoms or ions that have the same protonic configuration
Group of atoms or ions that have the same charges
Group of atoms or ions that have different electronic configuration
Going down the group, the atomic radius of elements increases. Why is that so?
the number of shell (n) increases
Shielding effect increases
Nucleus attraction towards valence electrons weaker
All of the above
Which species has the larger radius?
Cl
Cl-
Which species has the larger radius?
Na
Na+
Which atom has the largest atomic radius?
potassium
rubidium
francium
cesium
