Font size
WorksheetsAtomic Structure and the Periodic Table
Total questions: 35
Worksheet time: 28mins
Thompson was the first to discover a subatomic particle - the electron. What are the others?
neutrons & positrons
protons & neutrons
positrons & quarks
protons & positrons
A positively charged particle found in the nucleus is called a
neutron.
proton.
electron.
positron.
Electrons can best be described as having a
large size, positive charge.
very small size, positive charge.
large size, negative charge.
very small size, negative charge.
Electrons are subatomic particles that exist
inside the nucleus.
in simultaneous dimensions.
in parallel universes.
outside the nucleus.
Neutrons (discovered by James Chadwick in 1932) are neutral subatomic particles that are located
in and outside the nucleus.
in the nucleus.
just outside the nucleus.
in alternate universes.
Neutrons have almost exactly the same mass as
electrons.
positrons.
protons.
quarks.
The atomic number (#) of an element is equal to the
weight of an electron.
# of neutrons in a single atom of that element.
weight of a neutron.
# of protons in a single atom of that element.
Atoms of different elements have
the same # of protons.
the same general properties.
a different # of protons.
the same # of electrons.
Because atoms are neutral, each positive charge is
the same as a neutral charge.
balanced by a negative charge.
the same as no charge.
balanced by a neutral charge.
Which statement best describes the mass number (#) of an atom?
the sum of electrons and neutrons in the nucleus
the sum of protons & neutrons in the nucleus
the difference in mass between protons & neutrons
the difference in mass between electrons and neutrons
If you know the atomic number (or # of protons) and mass number of an atom, you can find the
number of electrons by adding to the mass number.
number of neutrons by adding to the mass number.
number of neutrons by subtracting from the mass number.
total atomic weight of an atom.
What are valence electrons?
electrons in the first orbital always.
nucleus
the outermost shell
the number of electrons present in the outermost orbital
What number indicates a proton?
What is the center of an atom called?
The headquarters
The centrometer
The hypothesis
The nucleus
How many neutrons does Zinc have?
95.39
65.39
35
30
Which element has an atomic symbol of Au?
Aluminum
Arsenic
Silver
Gold
Which of the following noble gasses has an atomic weight of 84.80?
Argon
Krypton
Xenon
Radon
Which element has an atomic # of 20?
Neon
Fluorine
Calcium
Iodine
Which element has an atomic # of 13?
Nitrogen
Yttrium
Aluminum
Carbon
Which element has the atomic weight of 58.93?
Zinc
Tin
Cobalt
Arsenic
What is the atomic symbol for Magnesium?
Mn
Ma
Me
Mg
What is the atomic symbol for Iron?
I
Ir
Fe
In
Which element has the atomic symbol of Ne?
Nickel
Sodium
Xenon
Neon
What is material that has mass and takes up space?
volume
mass
matter
density
Match the following
Periodic Table
Elements arranged in order of atomic #
Atomic Mass
The weighted average mass of an element's
Element Symbol
A one or two-letter abbreviation for an element
Atomic Number
Number of protons of an element
Valence Electrons
The number of electrons in the outermost shell of an atom
Using a periodic table order the following elements by atomic mass number, least to greatest.
Hydrogen
1
Boron
2
Argon
3
Titanium
4
Silver
5
Match the following
Period - Where?
Horizontal rows on the periodic table
Group/Family - Where?
Vertical columns on the periodic table
Period - What?
Number of electron shells
Group/Family - What?
Number of valence electrons (outershell)
