Worksheetsexperiencia
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
What are the three subatomic particles that make up an atom?
a)
Neutrons, Electrons, Quarks
b)
Protons, Neutrons, Positrons
c)
Protons, Electrons, Photons
d)
Protons, Neutrons, Electrons
2.
What defines an element?
a)
Number of neutrons
b)
Atomic mass
c)
Number of electrons
d)
Atomic number
3.
Where are protons and neutrons located in an atom?
a)
Energy levels
b)
Valence shell
c)
Nucleus
d)
Orbitals
4.
How many electrons can the first energy level hold?
a)
4
b)
2
c)
8
d)
1
5.
What is the charge of a proton?
a)
Neutral
b)
Negative
c)
Positive
d)
None
6.
What is the charge of an electron?
a)
Neutral
b)
Positive
c)
None
d)
Negative
7.
What is the charge of a neutron?
a)
Negative
b)
Neutral
c)
Positive
d)
None
8.
What is the default charge of elements on the periodic table?
a)
Neutral
b)
Negative
c)
Positive
d)
Varies
9.
How is the mass of an atom calculated?
a)
Protons + Electrons
b)
Protons + Neutrons + Electrons
c)
Neutrons + Electrons
d)
Protons + Neutrons
10.
How is the charge of an atom calculated?
a)
Protons + Neutrons
b)
Protons - Electrons
c)
Neutrons + Electrons
d)
Protons + Electrons
11.
What is a charged atom called?
a)
Isotope
b)
Compound
c)
Molecule
d)
Ion
12.
What is a positively charged ion called?
a)
Molecule
b)
Anion
c)
Cation
d)
Isotope
13.
What is a negatively charged ion called?
a)
Cation
b)
Anion
c)
Molecule
d)
Isotope
14.
What are isotopes?
a)
Atoms with different numbers of protons and neutrons
b)
Atoms with different numbers of electrons
c)
Atoms with different numbers of neutrons
d)
Atoms with different numbers of protons
15.
How is atomic mass determined?
a)
By counting the number of electrons
b)
By counting the number of neutrons
c)
By counting the number of protons
d)
By averaging the mass of all isotopes
16.
What is the mass contribution of an electron?
a)
0.0005 amu
b)
1 amu
c)
0 amu
d)
0.5 amu
17.
What is the mass contribution of a proton?
a)
0.5 amu
b)
1 amu
c)
0 amu
d)
0.0005 amu
18.
What is the mass contribution of a neutron?
a)
0.0005 amu
b)
0.5 amu
c)
1 amu
d)
0 amu
19.
How many electrons can the second energy level hold?
a)
6
b)
8
c)
4
d)
2
20.
Where are electrons located in an atom?
a)
Valence shell
b)
Nucleus
c)
Energy levels
d)
Orbitals
21.
What is the charge of a neutral atom?
a)
1
b)
-1
c)
0
d)
Varies
22.
What happens when an atom gains an electron?
a)
It becomes a molecule
b)
It becomes an isotope
c)
It becomes a cation
d)
It becomes an anion
23.
What happens when an atom loses an electron?
a)
It becomes an isotope
b)
It becomes a molecule
c)
It becomes an anion
d)
It becomes a cation
24.
What is the atomic number of an element?
a)
Number of neutrons
b)
Number of protons and neutrons
c)
Number of protons
d)
Number of electrons
25.
What is the relationship between the number of protons and electrons in a neutral atom?
a)
Protons < Electrons
b)
Protons = Electrons
c)
Protons > Electrons
d)
No relationship
100 %
