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WorksheetsAtomic Structure Study Guide
Total questions: 54
Worksheet time: 29mins
What is an atom's nucleus made of?
protons and electrons
protons only
protons and neutrons
neutrons only
How many electrons will a neutral atom of carbon have it its nucleus has 6 protons and 8 neutrons?
2
6
8
14
An element with 5 protons, 6 neutrons, and 8 electrons has a mass number of
5
6
8
11
An element with 5 protons, 6 neutrons, and 8 electrons has an atomic number of
5
6
8
11
The farther an electron is from the nucleus, the more __________ it has.
charge
energy
mass
size
Atoms of the same element that have different numbers of neutrons are called
molecules
ions
protons
isotopes
The total number of electrons in the outer shell of a sodium atom is
1
2
8
18
Which particles determine the atomic number of an element?
protons only
neutrons and protons
neutrons only
protons and electrons
The total number of neutrons in the nucleus of any atom is equal to the
mass number of the atom
atomic number of the atom
atomic number minus the mass num
mass number minus the atomic number
Two different isotopes of an element have different __________.
numbers of neutrons
numbers of protons
atomic numbers
nothing is different about them
Two different isotopes of an element have the same __________.
numbers of neutrons
numbers of protons
mass numbers
nothing is the same about them
The maximum number of electrons that can occupy the 2nd shell of an atom of magnesium is
1
2
8
18
The mass of the most common isotope of an element is known based on an element's __________.
mass number
average atomic mass
atomic number
number of electrons
Which of the following is a transition metal?
Calcium
Nickel
Aluminum
Tellurium
An atom is neutral because
neutrons balance the protons and electrons
nuclear forces stabilize the charges
the numbers of protons and electrons are equal
the numbers of protons and neutrons are equal
An unstable nucleus results from too many or too few __________.
neutrons
protons
electrons
radons
Which part of the periodic table indicates the number of energy levels in the electron cloud?
Group
Family
Valence Electrons
Period
What is the correct symbol for an isotope of carbon with 6 protons and 6 neutrons?
12C
12C
6C
6C6
Which statement about the arrangement of the periodic table is not true?
Noble gases are in the group farthest to the right.
Metals are found on the left side of the periodic table.
Rare Earth elements are in the first column on the left.
Transition metals are in the center of the periodic table.
What is the correct electron arrangement for sulfur? (Hint: think about electron shell/energy levels!)
2-8-6
2-8-8
4-6-2
2-8-4
Boron, carbon, nitrogen, and oxygen are all members of the same __________.
family
period
group
valence level
Which of the following elements would be the best conductor of electricity?
Iodine
Silicon
Silver
Argon
Which of the following elements would be the most reactive?
Iodine
Silicon
Silver
Argon
Which of the following elements would be the least reactive?
Iodine
Silicon
Silver
Argon
At room temperature, most metals are __________.
solids
liquids
gases
plasma
Hydrogen is in group 1 with lithium, sodium, potassium, rubidium, cesium, and francium because it __________.
is a metal
is a gas
has 1 valence electron
has 1 energy level
The force that holds the atoms together
Attractive force between the (+) nucleus and (-) electron cloud
Repulsive force between (-) electrons
Repulsive force between (+) protons
Attractive force between (+) protons and (-) electrons
The force that gives atoms their shape
Attractive force between the (+) nucleus and (-) electron cloud
Repulsive force between (-) electrons
Repulsive force between (+) protons
Attractive force between (+) protons and (-) electrons
The force that gives atoms their energy
Attractive force between the (+) nucleus and (-) electron cloud
Repulsive force between (-) electrons
Repulsive force between (+) protons
Attractive force between (+) protons and (-) electrons
Which of the following are characteristics/properties of metals?
shiny
silvery
poor conductors
semi-conductors
solids
Which of the following are characteristics/properties of nonmetals?
shiny
silvery
poor conductors
semi-conductors
solids
Which of the following are characteristics/properties of metalloids?
shiny
silvery
poor conductors
semi-conductors
solids
Which of the following are metals?
Al
Na
Ar
H
Te
Which of the following are metalloids?
Al
Na
Ar
H
Te
This element is int he same family as Br, but has fewer protons than Mg. It must be (a) .
This element has 6 energy levels and 8 valence electrons. It must be (a) .
This element is in the Alkaline Earth Metals group and has 3 energy levels. It must be (a) .
This element is int eh family with the most reactive nonmetals and has 4 energy levels. It must be (a) .
Write this following isotope in hyphen notation:
An isotope of Carbon has 7 neutrons.
(a)
A subatomic particle with a positive charge.
Proton
Neutron
Electron
The subatomic particle with no charge (therefore electrically neutral).
Proton
Neutron
Electron
A subatomic particle with a negative charge.
Proton
Neutron
Electron
The smallest known particles that make up protons and neutrons.
Quarks
Nucleus
Electron Cloud
The positively charged center of the atom where most of the mass of the atom is located.
Quarks
Nucleus
Electron Cloud
The negatively charged area around the nucleus where the volume of the atom is located.
Quarks
Nucleus
Electron Cloud
Nuclear Model; Gold Foil experiment allowed him to discover that the nucleus was the positively charged center of the atom surrounded by negatively charged electrons.
Rutherford
Bohr
Democritus
Dalton
Electrons travel in fixed orbits around the nucleus of the atom
Rutherford
Bohr
Democritus
Dalton
Named the atom based on the Greek word meaning indivisible
Rutherford
Bohr
Democritus
Dalton
Solid Sphere Model; elements are atoms with different masses.
Rutherford
Bohr
Democritus
Dalton
Arranged the elements on the periodic table based on atomic mass.
Mendeleev
Shrodinger & Heisenberg
Mosely
Thompson
Electron Cloud Model; surrounding the nucleus is an electron cloud made of shells - electrons do not, however, travel in fixed orbit.
Mendeleev
Shrodinger & Heisenberg
Mosely
Thompson
Arranged the elements on the periodic table based on atomic number.
Mendeleev
Shrodinger & Heisenberg
Mosely
Thompson
Plum Pudding Model; atom is a positive sphere with negatively charged particles evenly embedded throughout.
Mendeleev
Shrodinger & Heisenberg
Mosely
Thompson
Atoms of elements in the same group of the periodic table share the same
number of energy levels
number of valence electrons
atomic numbers
atomic mass
