WorksheetsMatter
Total questions: 33
Worksheet time: 21mins
These tiny, invisible particles are the smallest units of matter?
atoms
protons
electrons
neutrons
Electrons . . . (choose all that apply)
have a positive charge
have a negative charge
have a neutral charge
are found inside the nucleus
are found outside the nucleus
Protons . . . (choose all that apply)
have a positive charge
have a negative charge
have a neutral charge
are found inside the nucleus
are found outside the nucleus
Neutrons . . . (choose all that apply)
have a positive charge
have a negative charge
have no charge
are found inside the nucleus
are found outside the nucleus
Choose all the subatomic particles
atom
electron
neutron
nucleus
proton
What are the layers of electrons that are moving around outside the nucleus of an atom called?
atomic number
atomic mass
electron cloud
subatomic particles
What are the the tiny particles that make up an atom called?
atomic number
atomic mass
electron cloud
subatomic particles
This is the dense center of an atom.
electron cloud
electron
neutron
nucleus
proton
_____________ is anything that has mass and takes up space.
nucleus
electron cloud
subatomic particle
matter
The ______ ______ is the same as the number of protons in the nucleus of an atom.
atomic number
atomic mass
The ______ ______ is the sum of protons and neutrons.
atomic number
atomic mass
On the periodic table, the whole number, usually in bold, is the
Atomic mass
Atomic number
On the periodic table, the decimal number, usually written smaller, is the
Atomic mass
Atomic number
What is the atomic number for this element?
5
10.81
6
What is the atomic mass for this element?
5
10.81
6
How many protons are in this element?
5
10.81
6
How many electrons are in this element?
5
10.81
6
How many neutrons are in this element?
5
10.81
6
How many neutrons are in this element?
11
12
22.990
How many protons are in this element?
11
12
22.990
How many electrons are in this element?
11
12
22.990
What is the atomic number of this element?
11
12
22.990
What is the atomic mass of this element?
11
12
22.990
the number of protons in an atom is always. . .
larger than the number of electrons
smaller then the number of electrons
the same as the number of electrons
The first level in the electron cloud can have up to _______ electrons.
2
8
10
20
The second level in the electron cloud can have up to _______ electrons.
2
8
10
20
The third level in the electron cloud can have up to _______ electrons.
2
8
10
20
In our class this year, the fourth level in the electron cloud can have up to _______ electrons.
2
8
10
20
What is the atomic mass of this element?
18.9984
9
10
What is the atomic number of this element?
18.9984
9
10
How many neutrons are in this element?
18.9984
9
10
How many protons are in this element?
18.9984
9
10
How many electrons are in this element?
18.9984
9
10
