WorksheetsStructure of the Atom Lesson
Total questions: 25
Worksheet time: 16mins
Name
Class
Date
1.
What carries no charge
a)
Neutrons
b)
Electrons
c)
Protons
2.
The nucleus of an atom is charged.
a)
positively (+)
b)
negatively (-)
c)
variable
d)
not
3.
A particle that moves around the nucleus is a(n) .
a)
proton
b)
ion
c)
neutron
d)
electron
4.
The __________ contains the protons and neutrons of an atom, and is most of the mass of an atom
a)
Nucleus
b)
Atomic Number
c)
Atomic Mass
d)
Electrons
5.
The particles that are found in the nucleus of an atom are
a)
neutrons and electrons
b)
electrons only
c)
protons and neutrons
d)
protons and electrons
6.
Which of the following is a negatively charged subatomic particle?
a)
Electron
b)
Proton
c)
Neutron
d)
Quark
7.
All matter is made of what?
a)
energy
b)
atoms
c)
electrons
d)
compounds
8.
What is the unit used to measure weighted average atomic mass?
a)
amu
b)
gram
c)
angstrom
d)
nanogrm
9.
Contributes basically no mass to an atom.
a)
protons
b)
neutrons
c)
electrons
d)
protons and neutrons
10.
Protons are located in the nucleus of the atom.
A proton has _______________.
A proton has _______________.
a)
No charge
b)
A negative charge
c)
A positive and a negative charge
d)
A positive charge
11.
Neutrons are in the nucleus of the atom.
A neutron has _____________.
A neutron has _____________.
a)
A positive charge
b)
No charge
c)
A negative charge
d)
Twice as much positive charge as a proton
12.
An electron is in a region outside the nucleus. An electron ____________.
a)
Is larger than a proton and has no charge
b)
Has less mass than a proton and has a negative charge
c)
Is smaller than a proton and has no charge
d)
Has a positive charge
13.
The atomic number of an atom is _____________________.
a)
The mass of the atom
b)
The number of protons added to the number of neutrons
c)
The number of protons
d)
Negatively charged
14.
The atomic mass of an element is equal to:
a)
# of protons
b)
# of neutrons
c)
# of electrons
d)
Total # of protons and neutrons.
15.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
None of these
16.
So thinking of number 9, how many neutrons does this atom have?
a)
2.5
b)
5
c)
6
d)
10.81
17.
How many protons does this atom have?
a)
2.5
b)
6
c)
5
d)
10.811
18.
How many Electrons
a)
2.5
b)
5
c)
6
d)
10.81
19.
Which of these is the proton.
a)
A
b)
B
c)
C
d)
None
20.
Which of these is the electron?
a)
A
b)
B
c)
C
d)
D
21.
B and C are found in the ______ of an atom.
a)
Energy levels
b)
Space
c)
Nucleus
d)
Outside
22.
What part of the atom is the arrow pointing to?
a)
nucleus
b)
proton
c)
electron shell
d)
electron
23.
Matter is anything that ____________________.
a)
has mass
b)
takes up space
c)
has mass and takes up space
d)
has energy
24.
What is the outer shell of an atom called?
a)
Electron cloud
b)
Shell
c)
All of the above
d)
Orbital
25.
Subatomic particle with a positive charge.
a)
proton
b)
neutron
c)
electron
100 %
