WorksheetsPeriodic Table of Elements
Total questions: 29
Worksheet time: 18mins
Which elements have 1 valence electron?
period 1
group 1
group 4
The electrons in the outermost shell (main energy level) of an atom; these are the electrons involved in forming bonds
alkali metals (group 1)
Halogens (Group 17)
atomic number
valence electrons
noble gases
Name this group: These metals are the most reactive.
The periodic table is organized in horizontal rows called...
Groups
Periods
Families
Chemical Symbols
A scientist creates a hypothesis, but the data she collects fail to support that hypothesis. The scientist should then
change the data to support the hypothesis.
change the hypothesis to match the results.
forget the whole idea and walk away.
use the data to develop and test a new hypothesis.
The chemical symbol in this element box is
26
Fe
Iron
55.845
Which metal is found in period 3 and group 2?
Boron
Magnesium
Aluminum
Neon
Which noble gas has 18 protons?
Helium
Hydrogen
Argon
Calcium
Group 17 is known as the
Halogens
Noble Gases
Alkaline Earth Metals
Alkali Metals
Which group of elements have full energy levels and are considered stable?
Halogens
Alkaline Earth Metals
Alkali Metals
Noble gases
Which alkaline earth metal is found in period 2 and group 2?
Sodium
Beryllium
Aluminum
Carbon
What are the elements called in groups 3-12
Metalloids
Transition Metals
Alkali Metals
Halogens
Which noble gas is found in period 4?
Helium
Krypton
Argon
Neon
Calcium is a
metal
non-metal
metalloid
Chlorine is a
metal
non-metal
metalloid
Which is the best description of an element?
A substance that cannot be broken down into simpler substances
A collection of atoms that have different abilities when joined together
A man-made mineral
A mixture of substances
How many Valance electrons does Iodine Have?
6
16
7
17
Elements in the same group or family have the same number of
neutrons
valence electrons
electrons
energy levels
Elements in the same period have the same number of
neutrons
valence electrons
electrons
energy levels
What are the elements in group 2 of the periodic table called?
Alkali metals
Alkaline earth metals
Halogens
Noble gases
