WorksheetsPeriodic Table Test Review
Total questions: 30
Worksheet time: 7hrs 32mins
An atom has 26 protons and 24 electrons, which element is this?
Sodium
iron
sulfur
neodymium
Which is the smallest part of an element that retains all of the properties of the element?
proton
electron
neutron
atom
What does 2 represent?
chemical symbol
oxidation number
atomic number
atomic mass
What does 1 represent?
Chemical symbol
oxidation number
atomic number
atomic mass
What does 3 represent?
chemical symbol
oxidation number
atomic number
atomic mass
Which statement about the atomic nucleus is correct?
The nucleus is made of protons and neutrons and has a negative charge
The nucleus is made of protons and neutrons and has a positive charge.
The nucleus is made of electrons and has a positive charge
The nucleus is made of electrons and has a negative charge
A neutral atom of gallium (Ga) contains how many electrons?
15
16
31
69
Atoms in Group 18 elements are inert (chemically unreactive) because
they combined to form molecules.
they have no valence electrons.
they have filled inner energy levels.
they have a full valence shell.
A student was examining a sample of an element in a gaseous state at room temperature, and found after heating that it has a low melting point and boiling point. In which family below would the element be grouped?
Carbon Family
Alkali Metals
Halogens
Transition Metals
An element exhibits the following characteristics. It is brittle, lustrous, not ductile or malleable, a good conductor when cool, and has an average transmission of heat. What type of element is this?
Metal
Metalloid
Gas
Non-metal
Find Calcium (Ca, Atomic Number 20) on the Periodic Table. How many Energy Levels does it have compared to Carbon (C, Atomic Number 6)?
The have the same number of Energy Levels.
Calcium has 14 more Energy Levels than Carbon
Calcium has 12 fewer Energy Levels than Carbon
Calcium has 2 more Energy Levels than Carbon
The protons and neutrons of three carbon isotopes are shown. Which BEST describes the difference between carbon-12 and carbon-14?
Carbon-12 has two less protons than carbon-14.
Carbon-14 has two more neutrons than carbon-12.
Carbon-12 has one more neutron than carbon-14.
Carbon-14 has one less proton than carbon-12.
Use the Periodic Table to determine which of the following lists consists of elements that have the MOST similar chemical properties.
Mg, Al, and Si
K, Ca, and Ga
Mg, Ca, and Ba
K, Al, and Ni
The atom in the diagram is
beryllium
boron
neon
silicon
Uranium is a radioactive element that is highly unstable and it has a half-life of 4.5 billion years. Uranium comes in many different forms (shown below). Looking at the nuclear notations below, what is the neutron number of both of the elements below? What is the relationship of the two elements below?
U-235 has 235 neutrons, U-238 has 238 neutrons and they are isotopes of each other.
U-235 has 143 neutrons, U-238 has 146 neutrons and they are isotopes of each other
U-235 has 235 neutrons, U-238 has 238 neutrons and they are ions of each other
U-235 and U-238 have 92 neutrons and they are ions of each other.
Which picture correctly models an atom from a lithium isotope?
Section 1 contains the
alkali metals
transition metals.
halogens.
noble gases
Which element type is placed in section 2?
metals
metalloids
noble gases
nonmetals
Section 3 contains what?
metalloids
nonmetals
alkali metals
alkali earth metals
Section 4 of the diagram contains
metalloids
nonmetals
alkali metals
alkali earth metals
Silicon has properties of both metals and nonmetals. Silicon is found in which section?
1
2
3
4
Which three elements have the most similar chemical properties?
O, N, Si
K, Rb, Cs
Ar, Kr, Br
B, C, N
Where in the atom could a proton be found?
W or X
X or Y
Y or Z
Z or W
In which section of the Periodic Table are the most active metals located?
lower right corner
upper right corner
lower left corner
upper left corner
How many neutrons are in Carbon-14?
6
8
14
20
The number of electrons in a neutral carbon (C) atom
can be determined by adding the atomic number to the atomic mass
can be determined by dividing the atomic mass by the atomic number
is equal to the number of protons in carbon (C).
is equal to the mass number of carbon (C).
What is the oxidation number for Selenium?
+2
-2
+3
-3
How many electrons does an ion of selenium have?
34
35
36
33
The isotope Carbon-13 has how many protons?
7
6
5
13
The isotope Carbon-13 has how many neutrons?
7
6
5
13
