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WorksheetsAtomic Structure
Total questions: 20
Worksheet time: 20mins
Name
Class
Date
1.
Subatomic particles with a negative charge
a)
Electrons
b)
Neutrons
c)
Protons
d)
Quarks
2.
subatomic particles found on the outermost shell & responsible for the atom's reactivity
a)
neutrons
b)
valence electrons
c)
isotopes
d)
ions
3.
Subatomic particles with a positive charge
a)
neutrons
b)
atomic mass
c)
protons
d)
isotopes
4.
Measure mainly of the nuclear particles: protons + neutrons
a)
Subatomic Particles
b)
Atomic Number
c)
Atomic Mass
d)
Gluons
5.
Value representing the number of protons in an element
a)
Atomic Mass
b)
Mass Number
c)
Valence Electrons
d)
Atomic Number
6.
Subatomic particles that are neutral in charge
a)
Neutrons
b)
Protons
c)
Nucleus
d)
Electrons
7.
The smallest particle of an element that shows all the properties of that element.
a)
Subatomic Particles
b)
Atom
c)
Quarks
d)
Gluons
8.
Where electrons are likely to be found as they travel around the nucleus
a)
Nucleus
b)
Electron Cloud
c)
Within a Proton
d)
Within a Neutron
9.
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
10.
Arrangement of elements organized by atomic number
a)
Electron Cloud
b)
Periodic Table
c)
Electron Configuration
d)
None of these
11.
The only element with no neutrons in its nucleus.
a)
Oxygen
b)
Helium
c)
Hydrogen
d)
Lithium
12.
Subatomic particle with a charge of 0
a)
neutron
b)
proton
c)
electron
d)
quark
13.
Most of the volume an atom is made of this
a)
the nucleus
b)
the protons
c)
the neutrons
d)
empty space
14.
The number of these determines which element an atom is.
a)
neutrons
b)
electrons
c)
protons
15.
This is how you find the number of neutrons in an atom.
a)
Subtract the atomic number from the atomic mass
b)
Subtract the atomic mass from the atomic number
c)
Add the atomic mass to the atomic number
d)
Divide the atomic mass by the atomic number
16.
An atom is the smallest piece of a(an) _____ you can get.
a)
mixture
b)
compound
c)
molecule
d)
element
17.
What is the atomic number?
a)
35
b)
18
c)
17
d)
52
18.
How many neutrons does Chlorine have?
a)
18
b)
17
c)
35
d)
52
19.
How many protons does Neon have?
a)
10
b)
20
c)
30
20.
What is the atomic mass of Arsenic?
a)
33
b)
107
c)
75
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