WorksheetsIntro Bio chem/Bonding
Total questions: 12
Worksheet time: 21mins
Name
Class
Date
1.
What is a substance that cannot be broken down into similar chemical substances?
a)
Element
b)
Compound
c)
Molecule
d)
Proton
2.
The smallest particle of an element that retains the characteristics of the element.
a)
Atom
b)
Proton
c)
Neutron
d)
Electron
3.
What is at the center of every atom?
a)
An electron
b)
A compound
c)
A molecule
d)
A nucleus
4.
Which two particles make up the nucleus of an atom?
a)
Protons and Electrons
b)
Protons and Neutrons
c)
Molecules and Compounds
d)
Neutrons and Electrons
5.
What is the role of an electron in an atom?
a)
Electrons live inside the nucleus and carry a neutral charge.
b)
Electrons circle the nucleus and have a positive charge.
c)
Electrons circle the nucleus and have a negative charge.
d)
Electrons live inside the nucleus and have a negative charge.
6.
In an atom, what is the number of protons equal to?
a)
The number of electrons.
b)
The number of neutrons.
c)
The number of molecules.
d)
The number of nuclei.
7.
Which of the following determines the type of element that an atom makes?
a)
The size of the nucleus.
b)
The number of protons.
c)
How much the atom weighs.
d)
The number of neutrons.
8.
What forms when two atoms combine?
a)
A molecule.
b)
A nucleus.
c)
A proton.
d)
An electron.
9.
A proton is a _____ charged particle.
a)
Negatively
b)
Positively
10.
What charge does a neutron have?
a)
positive
b)
negative
c)
no charge
d)
neutral
11.
What is a cation's charge?
a)
positive
b)
negative
c)
neutral
d)
depends on the element
12.
What is an anion's charge?
a)
positive
b)
negative
c)
neutral
d)
depends on the element's charge
100 %
