WorksheetsScience G7 Quiz
Total questions: 14
Worksheet time: 7mins
Name
Class
Date
1.
How many Groups are in the periodic table
a)
7
b)
118
c)
18
d)
20
2.
What is the smallest unit of matter?
a)
molecule
b)
atom
c)
cells
3.
Which scientist proposed the first experimental model of the atom?
a)
Dalton
b)
Rutherford
c)
Einstein
4.
Protons are negatively charged particles revolving around the nucleus.
a)
True
b)
False
5.
What is the charge of a neutron?
a)
negative
b)
neutral
c)
positive
6.
Which of the following elements is represented by the symbol "K" in NPK fertilizers?
a)
Nitrogen
b)
Phosphorus
c)
Potassium
7.
Who is the first scientist to publish the periodic table
a)
Mosley
b)
Mendeleev
c)
Rutherford
d)
Robert Hoke
8.
The modern periodic table is based on .................
a)
Atomic number
b)
Mass number
c)
Energy levels filled with electrons
d)
Atomic number and energy levels filled with electrons
9.
What is the electronic distribution of Hydrogen with 1 atomic number
a)
K=1
L=8
b)
K=1
c)
K=2
d)
K=1
L=5
10.
.................... is from noble gases
a)
Hydrogen
b)
Neon
c)
Nitrogen
d)
chlorine
11.
1A Group in the S block are all metals
a)
True
b)
False
12.
Group 2 A is known as alkaline Earth metals
a)
True
b)
False
13.
in Group 4 A, atoms have ................. number of electrons in the last energy level
a)
2
b)
3
c)
4
d)
6
14.
Halogens have ................ electrons in the last energy level
a)
2
b)
3
c)
7
d)
8
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