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WorksheetsAtomic Structure
Total questions: 20
Worksheet time: 40mins
Name
Class
Date
1.
Subatomic particles with a negative charge
a)
Electrons
b)
Neutrons
c)
Protons
d)
Quarks
2.
Subatomic particles with a positive charge
a)
neutrons
b)
atomic mass
c)
protons
d)
isotopes
3.
Measure mainly of the nuclear particles: protons + neutrons
a)
Subatomic Particles
b)
Atomic Number
c)
Atomic Mass
d)
Gluons
4.
Value representing the number of protons in an element
a)
Atomic Mass
b)
Mass Number
c)
Valence Electrons
d)
Atomic Number
5.
Subatomic particles that are neutral in charge
a)
Neutrons
b)
Protons
c)
Nucleus
d)
Electrons
6.
A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass
a)
Electron Shells
b)
Orbitals
c)
Electron Cloud
d)
Nucleus
7.
Arrangement of elements organized by atomic number
a)
Electron Cloud
b)
Periodic Table
c)
Electron Configuration
d)
None of these
8.
The only element with no neutrons in its nucleus.
a)
Oxygen
b)
Helium
c)
Hydrogen
d)
Lithium
9.
The smallest particle of an element.
a)
Element
b)
Molecule
c)
Atom
10.
What is one way Neutrons are different from electrons?
a)
they both are negative
b)
neutrons have no charge, while electrons have a negative charge
c)
Both are in the nucleus( center of atom)
d)
Electrons are inside nucleus and neutrons are outside the nucleus.
11.
What is the atomic number?
a)
35
b)
18
c)
17
d)
52
12.
How many protons and electrons does this element have?
a)
35
b)
18
c)
17
d)
52
13.
How many neutrons does Chlorine have?
a)
18
b)
17
c)
35
d)
52
14.
What is the atomic mass of Neon?
a)
10
b)
20
c)
30
15.
How many neutrons does calcium have?
a)
20
b)
40
c)
60
d)
0
16.
What is the atomic mass of Arsenic?
a)
33
b)
107
c)
75
17.
What number indicates the nucleus?
a)
1
b)
2
c)
3
d)
4
18.
What number indicates an electron?
a)
1
b)
2
c)
3
d)
4
19.
All matter is made of
a)
energy
b)
atoms
c)
air
d)
chemistry
20.
Referring to the table, what is the relative mass of a proton?
a)
10
b)
1
c)
0.1
d)
0.01
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