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Class 10 Practice - Level 1 -Periodic Classification Of Elements
Total questions: 40
1.
Which of the following elements has the smallest atomic size?
Lithium
Sodium
Potassium
Cesium
None
2.
What is the common property of elements in group 17 of the periodic table?
They are all metals
They are all metalloids
They are all non-metals
They are all noble gases
None
3.
Which of the following elements is a metal?
Carbon
Oxygen
Sodium
Chlorine
None
4.
Which element has an atomic number of 1?
Hydrogen
Helium
Lithium
Beryllium
None
5.
How many electrons does sodium have in its outermost shell?
1
2
3
4
None
6.
Which of the following elements has the highest electronegativity?
Fluorine
Chlorine
Bromine
Iodine
None
7.
Which of the following elements is a noble gas?
Nitrogen
Oxygen
Neon
Sulphur
None
8.
Which element is the most reactive metal?
Lithium
Sodium
Potassium
Cesium
None
9.
Which of the following elements is known for being a good conductor of electricity?
Sulphur
Silicon
Copper
Bromine
None
10.
Which element is classified as a metalloid?
Boron
Oxygen
Sodium
Chlorine
None
11.
According to the modern periodic law, the properties of elements are a periodic function of their
Atomic size
Atomic number
Mass number
Density
None
12.
Which of the following groups in the periodic table contains the alkali metals?
Group 1
Group 2
Group 17
Group 18
None
13.
The horizontal rows in the periodic table are called:
Groups
Periods
Blocks
Series
None
14.
Which element is most likely to form an ionic bond with chlorine?
Carbon
Hydrogen
Sodium
Nitrogen
None
15.
How many valence electrons does oxygen have?
2
4
6
8
None
16.
Which element in the second period has the highest ionization energy?
Lithium
Beryllium
Boron
Neon
None
17.
Which of the following elements is a non-metal?
Magnesium
Calcium
Phosphorus
Zinc
None
18.
Which of the following elements has the lowest electronegativity?
Fluorine
Oxygen
Nitrogen
Lithium
None
19.
Which element is in the third period and belongs to the group of noble gases?
Helium
Neon
Argon
Krypton
None
20.
What is the chemical symbol for the element Gold?
Au
Ag
Gd
Ga
None
21.
Which element in group 17 has the highest electronegativity?
• Fluorine
• Chlorine
• Bromine
• Iodine
None
22.
What is the chemical symbol for Iron?
Ir
Fe
In
I
None
23.
What is the chemical symbol for the element Potassium?
P
Pt
K
Po
None
24.
Which of the following elements has the highest atomic radius?
Fluorine
Chlorine
Bromine
Iodine
None
25.
Which of the following elements is a noble gas?
Hydrogen
Oxygen
Nitrogen
Argon
None
26.
The elements in the same group have similar:
• Atomic sizes
• Mass numbers
• Chemical properties
• Densities
None
27.
Which element is more reactive with water?
Magnesium
Aluminium
Sodium
Gold
None
28.
Which of the following elements is a transition metal?
Sodium
Copper
Carbon
Chlorine
None
29.
Which of the following elements is a liquid at room temperature?
Mercury
Silver
Copper
Gold
None
30.
Which of the following elements is known for being a semiconductor?
Sulphur
Silicon
Copper
Bromine
None
31.
Which element in the second period has the smallest atomic radius?
Lithium
Beryllium
Fluorine
Neon
None
32.
Which group in the periodic table contains the noble gases?
Group 1
Group 2
Group 17
Group 18
None
33.
The vertical columns in the periodic table are called:
Groups
Periods
Blocks
Series
None
34.
Which of the following elements is used in making batteries?
Lithium
Neon
Calcium
Zinc
None
35.
Which of the following elements is an alkali metal?
Magnesium
Calcium
Sodium
Zinc
None
36.
How many protons does an atom of carbon have?
4
6
8
12
None
37.
In which block of the periodic table is the element Iron found?
s-block
p-block
d-block
f-block
None
38.
Which of the following elements is a good conductor of heat?
Sulphur
Silicon
Copper
Bromine
None
39.
Which element is most likely to form a covalent bond with hydrogen?
Carbon
Sodium
Magnesium
Aluminium
None
1 out of 39
Time's up
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