The A.M.I. School
Class: IX
Atomic Structure (Practice)
Total Marks: 40
Time: 45 min
MCQs
(15)
1)
The longest period is ________________ period & contains ________________
elements.
a)
Seventh, 32
c)
Sixth, 43
b)
Sixth, 32
d)
Seventh, 34
2)
The elements that contain both metallic & non-metallic characteristics are called
________________
a)
Alloy
c)
Metalloid
b)
Met allergy
d)
Compound
3)
Elements are arranged in the periodic table according to their ________________
a)
Atomic mass
c)
Atomic Structure
b)
Atomic size
d)
Atomic number
4)
The incomplete period in the periodic table is ________________
a)
7
c)
3
b)
6
d)
5
5)
The only liquid metal is ________________
a)
Mercury
c)
Bromine
b)
Gold
d)
Copper
6)
Which pair of elements is chemically similar?
a)
K, Cr
c)
Cu, Ca
b)
F, Cl
d)
N, O
7)
The elements having eight valence electrons are known as
a)
Halogen
c)
Nobel or inert gases
b)
Carbon family
d)
Nitrogen family
8)
The number of elements present in zero group is
a)
Six
c)
seven
b)
Nine
d)
eight
9)
The most reactive metal is ________________
a)
Na
c)
Fe
b)
Cu
d)
Ca
10)
The highly reactive group is ________________
a)
Carbon family
c)
Zero group
b)
Halogen
d)
Lithium family
11)
Which of these is not the property of transition elements?
a)
They have variable Valency
b)
They show similar behaviour
c)
They have weak inter-atomic bonds
d)
Their compounds having colors
12)
An atom is considered as neutral because
a)
Positive & negative charges cancelled each other
b)
Nucleus of an atom carries positive charge
c)
Neutron has no charge
d)
Electrons carry negative charge
13)
Which one of the appropriate characteristic of Alkali metals.
a)
Outer most shell having 2 electrons
b)
Highly reactive
c)
They show more than one form of Allotropy
d)
They all are non reactive
14)
Change of an electron expressed in
a)
Gm
c)
b)
Coulombs
d)
joules
kilo-watt
15)
The scientist was the first chemist to put elements in a periodic table.
a)
Robert Brown
c)
Mosley
b)
Rutherford
d)
Mendeelve
Q.1)
Define the elements & how many element on the earth have been discovered?
(01)
________________________________________________________________________
________________________________________________________________________
Q.2)
Difference between metals & Non-metals
(04)
Metal
.

_______________________________
Non-metal

_______________________________

_______________________________
_______________________________

_______________________________

_______________________________
_______________________________
_______________________________
_______________________________
_______________________________

_______________________________

_______________________________
_______________________________
_______________________________

_______________________________
_______________________________
Q.3)
In what ways Isotopes of an element differ from each other.
(03)
Isotopes have
(Different)
Q.4)
Calculate the number of neutrons in the following element or Isotopes.
Elements / Isotopes
15
7
(04)
N=A-Z
N
18
8
O
3
1
D
35
17
Cl
Q.5)

Give three characteristics of Halogen
(03)
________________________________________________________________________
________________________________________________________________________

________________________________________________________________________
________________________________________________________________________

________________________________________________________________________
________________________________________________________________________
Q.6) Label the structure of the periodic table as groups, periods & mention the names of
groups also:
(10)