WorksheetsThe Chemistry of Life
Total questions: 11
Worksheet time: 8mins
Name
Class
Date
1.
The basic unit of matter
a)
matter
b)
energy
c)
atom
d)
isotope
2.
The center of the atom which contains the protons and neutrons
a)
electrons
b)
core
c)
center
d)
nucleus
3.
Negatively charged particle; located outside the atomic nucleus
a)
electrons
b)
neutrons
c)
protons
d)
atom
4.
A substance consisting entirely of one type of atom
a)
compound
b)
atom
c)
molecule
d)
element
5.
Atom of an element that has a number of neutrons different from that of other atoms of the same element
a)
neutron
b)
neutral
c)
element
d)
isotope
6.
A substance formed by the chemical combination of two or more elements in definite proportions
a)
compound
b)
element
c)
atom
d)
molecule
7.
A bond formed when one or more electrons are transferred from one atom to another
a)
bond
b)
ionic bond
c)
covalent bond
d)
ion
8.
An atom that has a positive or negative charge
a)
ion
b)
proton
c)
covalent bond
d)
ionic bond
9.
A bond formed by the sharing of electrons between atoms
a)
ionic bond
b)
sharing
c)
pair
d)
covalent bond
10.
Smallest unit of most compounds
a)
element
b)
bond
c)
atom
d)
molecule
11.
A slight attraction that develops between the oppositely charged regions of nearby molecules
a)
electromagnetic force
b)
gravity
c)
van der Waals forces
d)
polarity
100 %
