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WorksheetsGrade 9 Atomic Structure and Element Names
Total questions: 15
Worksheet time: 16mins
Name
Class
Date
1.
Subatomic particles with a negative charge
a)
Electrons
b)
Neutrons
c)
Protons
d)
Quarks
2.
Most of the mass in an atom is made up of _____________________?
a)
protons and electrons
b)
protons and neutrons
c)
neutrons and electrons
d)
electrons and quarks
3.
Water is an element
a)
true
b)
false
4.
DIFFERENT kinds of atoms chemically combined to form a substance are
a)
Mixture
b)
Element
c)
Compound
d)
Substance
5.
Which subatomic particle determines the identity of an element?
a)
protons
b)
neutrons
c)
electrons
6.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
7.
What is the mass number of this atom?
a)
1
b)
3
c)
4
d)
7
8.
An atom has 10 protons, 15 neutrons and 10 electrons what is its mass number.
a)
20
b)
10
c)
35
d)
25
9.
An element with a mass number of 11 and an atomic number of 5 has how many neutrons?
a)
11
b)
5
c)
6
d)
16
10.
Na is the symbol for ____.
a)
helium
b)
sulfur
c)
neon
d)
sodium
11.
C is the symbol for ____/
a)
copper
b)
carbon
c)
calcium
d)
chlorine
12.
Al is the symbol for ____.
a)
silver
b)
gold
c)
aluminum
d)
arsenic
13.
O is the symbol for_______.
a)
oxygen
b)
ozone
c)
hydrogen
d)
osmium
14.
Ca is the symbol for ____.
a)
carbon
b)
calcium
c)
copper
d)
chlorine
15.
K is the symbol for ____.
a)
phosphorus
b)
calcium
c)
potassium
d)
carbon
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