Chemistry
Lewis
Name: KEY Date: _________
Quizamalam Ch. 3 Form B
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
Nuclide
Atom
Law of multiple proportions
Molar mass
Average atomic mass
Avogadro’s number
Isotopes
Mole
Mass number
Atomic number
1. If two or more different compounds
are composed of the same two
elements, then the ratio of the
masses of the elements combined
with a certain mass of the first
element is always a ratio of small
whole numbers
Law of multiple proportions
2. The number of particles in exactly
one mole of a pure substance;
6.022 x 1023
Avagadro’s Number
3. Atoms of the same element that
have different masses
isotopes
4. The amount of a substance that
contains as many particles as there
are atoms in exactly 12 g of carbon12.
mole
5. The smallest particle of an element
that retains the chemical properties
of that element
Atom
6. The mass of one mole of a pure
substance
Molar mass
7. A general term for any isotope of
any element
nuclide
8. The number of protons in the
nucleus of each atom of that
element
Atomic number
9. The weighted average of the atomic
masses of the naturally occurring
isotopes of an element
Average atomic mass
10. The total number of protons and
neutrons in the nucleus of an
isotope.
Mass number