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WorksheetsSC9 U3-Atoms, PNE
Total questions: 20
Worksheet time: 9mins
Name
Class
Date
1.
Which particle has a positive charge?
a)
electron
b)
orbital
c)
proton
d)
neutron
2.
This particle determines what element you have - the elements identity.
a)
electron
b)
proton
c)
neutron
d)
valence shell
3.
Which particles make up the nucleus of an atom?
a)
protons and neutrons
b)
electrons and protons
c)
electrons, protons, and neutrons
d)
electrons and neutrons
4.
The particles of the atom you can find by knowing the atomic number.
a)
neutrons
b)
protons and electrons
c)
protons and neutrons
d)
atomic mass
5.
What charge does the nucleus have and why?
a)
positive - the neutrons do not have a charge
b)
positive - the neutrons and protons are positively charged particles
c)
neutral - the neutral charge dominates the positive charge
d)
neutral - electrons cancel out the positive charge of the atom
6.
How many protons does sulfur have?
a)
32
b)
16
c)
48
d)
12
7.
The subatomic particles in green are...
a)
Protons
b)
Neutrons
c)
Electrons
8.
What is the mass number of this element?
a)
7
b)
8
c)
14
d)
14.01
e)
7.01
9.
If an element has an atomic number of 11 and a mass number of 23, how many neutrons does it have?
a)
11
b)
12
c)
23
d)
34
10.
An element has 17 protons and 18 neutrons in the nucleus. What is the element's mass number?
a)
17
b)
18
c)
1
d)
35
11.
How many protons are in Cadmium?
a)
112.411
b)
170
c)
64
d)
48
e)
0.411
12.
How many neutrons does Argon have in it's nucleus?
a)
39.948
b)
58
c)
22
d)
18
e)
12
13.
Which element has 6 protons?
a)
N
b)
C
c)
O
d)
B
e)
Be
14.
Calculate the atomic weight/mass of an atom with:
11 protons
10 neutrons
11 electrons
11 protons
10 neutrons
11 electrons
a)
11
b)
21
c)
22
d)
10
e)
32
15.
What is the atomic mass of this atom?
a)
5
b)
3
c)
4
d)
7
e)
10
16.
Protons have a ____________ charge, neutrons have a ____________ charge, and electrons have a ____________ charge.
a)
positive; negative, neutral
b)
positive, neutral, negative
c)
neutral, negative, positive
d)
negative, neutral, positive
17.
W
a)
walmart
b)
tungsten
c)
wolfram
d)
williamsportium
e)
tellilium
18.
potassium
a)
P
b)
Pu
c)
Pt
d)
K
e)
Po
19.
How many neutrons are in magnesium?
a)
12
b)
24
c)
25
d)
36
20.
How many neutrons does beryllium have?
a)
4
b)
5
c)
9
d)
13
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