WorksheetsClassification of Elements in Periodic Table
Total questions: 20
Worksheet time: 27mins
Classification system for elements is called:
Elements
Periods
The Periodic Table of Elements
Families
How many groups present in modern Periodic table ?
7
18
8
14
The horizontal row in the periodic table is called
Period
Group
Line
Field
In the modern periodic table, the period indicates the value of:
Atomic number
Atomic mass
Principal quantum number
Azimuthal quantum number.
In the periodic table there is ____periods
6
7
8
9
According to the modern periodic table, the elements are arrange in increasing order of (a)
The atoms of elements belonging to the same group of periodic table have the same
number of protons.
number of electrons.
number of neutrons.
number of electrons in the outermost shell.
Atoms of elements in group 1 have ____________.
one electron in their outermost shell
two electrons in their outermost shell
seven electrons in their outermost shell
eight electrons in their outermost shell
_____ group contains the member of
halogen family.
17th
15th
18th
16th
Group 1 and 2 are located in ___ block
s
p
d
f
Groups 13 and 18 are located in ___ block
s
p
d
f
Atoms of elements in group 1 have ____________.
one electron in their outermost energy level
two electrons in their outermost energy level
seven electrons in their outermost energy level
eight electrons in their outermost energy level
choose the correct statement
the vertical column in the periodic table is called period
the vertical column in the periodic table is called group
the horizontal row in the periodic table is not called period
none of the above
Which element has n=2 and s2 p6 configuration?
He
O
Ne
Ni
This is the electronic configuration of atom L, 1s2 2s2 2p6 3s2 3p6 4s2 3d5. How many valence electrons of atom L?
2
5
7
13
What makes the d block wider than either the s block or the p block?
The d sub-orbital can hold ten electrons, making the d block ten elements wide.
The d block is the most researched area of the periodic table.
The elements in the d block are more important than the elements in the rest of the table.
The elements in the d block are all metals.
Element C is the located in the first row of transition element in block d. It has 4 valence electrons. Write its valence electronic configuration. (You may write the superscript using normal numbers)
(a)
Element E has the following electronic configuration, 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p1. This element is located in block (a) .
Element F - Group 13, period 2
By using the above information, write full electronic configuration of element F.
(a)
