Periodic Table and Chemical
Reactions Review
What is the
atomic mass of
Silicon?
28.0855 or 28
What do you call the
substance(s) produced by a
chemical reaction?
products
Where do you find the
products written in a
chemical equation?
To the right of the arrow
What is the
atomic number of
Silicon?
14
What does the arrow in a
chemical equation mean?
yields
Who arranged the first
periodic table?
Dmitri Mendeleev
Name the 5 indicators of a chemical
reaction. (You will receive 1 point for
each correct answer.)
1. Color change
2. Gas production
3. Light production
4. Temperature change
5. Precipitate formation
Who rearranged the periodic
table into its current format?
Henry Moseley
The current periodic table is
arranged in order of ______.
Atomic number
What has luster, is malleable,
ductile, and good conductor
of heat and electricity?
metals
Hydrogen is highly flammable
is an example of a _________
property.
chemical
What are usually gases or
brittle solids and poor
conductors?
nonmetals
Name an element that is
MOST similar to Calcium.
Beryllium, Magnesium,
Strontium, Barium, or
Radium
Name an element that has
the same number of energy
levels as Boron.
Lithium, Beryllium, Carbon,
Nitrogen, Fluorine, Neon
What is the
element symbol of
Silicon? (must be
written in correct
format.
Si
How many valence electrons
does Aluminum have?
3
Water boils at 100 degrees
Celsius is an example of a
_______ property.
physical
The MOST important
subatomic particle to look at
when determining chemical
properties of an element is
___.
Valence electron
Using the periodic table and looking at
elements 33, 34, 35, 52, and 53, which
of the following statements is true?
A. Selenium is most like Bromine.
B. Iodine has more valence electrons
than Tellurium.
C. Bromine and Iodine have the same
number of energy levels.
D. Arsenic has more protons.
The atomic number of an
element represents the
number of ____________.
protons
What do you call the
substance(s) before a
chemical reaction begins?
reactants
Where do you find the
reactants written in a
chemical equation?
To the left of the arrow
Lighting a match is an
example of a ________
change.
chemical
What share properties of
both metals and nonmetals?
metalloids
If a chemical equation is
balanced, what law is it
following?
Law of conservation of
mass
An element with the same
number of valence electrons
as Phosphorus is _____.
Nitrogen, Arsenic,
Antimony, Bismuth
The group of elements that
are the most reactive metals
are in group number ____.
1 or 1A
The group of elements that
are nonreactive gases are in
group number _____.
18 or 8A
Ice melting is an example of a
___________ change.
physical
P4 + 5O22P2O5
What is the coefficient of the
phosphorus molecule?
1
P4 + 5O22P2O5
What is the subscript of the
phosphorus molecule?
4
Does this equation follow the
law of conservation of mass?
3N2O5 + 3H2O  5HNO3
no
Does this equation follow the
law of conservation of mass?
2HgO  2Hg + O2
yes
Which coefficients would
balance the following
equation?
__ NaClO3  __ NaCl + __ 02
2, 2, 3
If 16 grams of oxygen are
combined with 2 grams of
hydrogen, how much water
would be formed?
18 grams