WorksheetsPeriodic Trends
Total questions: 33
Worksheet time: 24mins
Which of the following statements is true regarding the atomic number of an element?
The atomic number is the number of protons in an element.
The atomic number is the number of electrons in an element.
The atomic number is the number of neutrons in an element.
The atomic number is the mass of the nucleus of an element.
The horizontal rows on the Periodic Table are referred to as which of the following?
Groups or Families
Periods or Rows
Columns or Rows
Valence or Orbitals
The vertical columns on the Periodic Table are referred to as which of the following?
Groups or Families
Periods or Rows
Columns or Rows
Valence or Orbitals
What does the Periodic Table help scientists do?
Identify the most common compounds found on Earth.
Create mixtures of elements in order to make new elements.
Make predictions about what kind of properties new elements might have.
Determine how expensive each element is to mine from the Earth.
Silicon (Si) is in period 3 on the Periodic Table. What does this tell you about this element?
It is highly reactive with water.
It has 3 valence electrons.
It has 3 protons in its nucleus.
It has 3 energy levels/shells in its electron cloud.
Calcium (Ca) is in group 2 on the Periodic Table. What does this tell you about this element?
It is not reactive with water.
It has 2 valence electrons.
It has 2 protons in its nucleus.
It has 2 energy levels/shells in its electron cloud.
Which of the following elements would have similar chemical properties to the element Oxygen (O)?
Nitrogen (N)
Chlorine (Cl)
Neon (Ne)
Sulfur (S)
Which of the following elements would have the same number of energy levels/shells as the element Sodium (Na)?
Magnesium (Mg)
Lithium (Li)
Potassium (K)
Oxygen (O)
The (a) metals are all of the elements located in groups 3-12 on the Periodic Table.
The (a) metals are all of the metals located in group 1 on the Periodic Table that are also highly reactive in water.
The (a) are all of the elements located in group 17 on the Periodic Table that react with many metals to form salts.
The _______ _____ are all of the elements located in group 18 on the Periodic Table. They are the least reactive and most stable group of elements.
(a)
The _______ _____ metals are all of the elements located in group 2 on the Periodic Table
(a)
Mendeleev arranged the elements in a unique patterns which allowed him to predict properties of certain elements before they were even discovered.
True
False
The Periodic Table is arranged in order of increasing atomic mass.
True
False
The atomic radius of the elements increases as you move down each group.
True
False
The number of energy levels/shells can be determined from the period number.
True
False
Calcium (Ca)
Alkaline Earth Metals
Neon (Ne)
Noble Gases
Potassium (K)
Alkali metals
Titanium (Ti)
Transition Metals
Fluorine (F)
Halogens
Reorder the following from most reactive to least reactive:
Potassium (K)
Radon (Rn)
Carbon (C)
. What is the name given to the elements that are located to the right of the “stair step” or “zigzag line” on the Periodic Table?
Metals
Nonmetals
Metalloids
Mixtures
What is the name given to the elements that are located to the left of the “stair step” or “zigzag line” on the Periodic Table?
Metals
Nonmetals
Metalloids
Compounds
What is the name given to the elements that border the “stair step” or “zigzag line” on the Periodic Table?
Metals
Nonmetals
Metalloids
Solids
Mystery Element 1 • Brittle • Poor Conductor • Dull • Low Melting Point
Mystery Element 1 would be grouped into which of the following categories?
Metals
Nonmetals
Metalloids
Compounds
Mystery Element 2 • Brittle • Solid • Semiconductor • Magnetic
.Mystery Element 2 would be grouped into which of the following categories?
Metals
Nonmetals
Metalloids
Compounds
The way light reflects from the surface of a substance is known as (a) .
Elements that are mostly shiny, silver or gray in color, malleable, ductile, and good conductors of heat and electricity are referred to as (a) .
Elements that are mostly dull, brittle, not malleable or ductile, and poor conductors of heat and electricity are referred to as (a) .
The majority of elements on the Periodic Table are classified as nonmetals
True
False
Match the following element to its group
Hydrogen (H) - Hydrogen is the most abundant element in the universe.
Nonmetal
Aluminum (Al) - Aluminum is commonly used in the aerospace industry
Metal
Boron (B) - Boron is used in fiberglass for insulation and structural materials
Metalloid
Metalloids are able to conduct heat and electricity under certain conditions.
True
False
Chlorine (Cl) is a yellow-green gas at room temperature. Based only on this information, where would you expect to find this element on the Periodic Table?
Left side
Right side
At the top
At the bottom
What is a semiconductor?
An element that conducts electricity.
An element that conducts electricity only under certain conditions.
An element that does not conduct electricity.
An element that barely conducts electricity.
Which of the following elements is likely to be a semiconductor?
Silver
Oxygen
Copper
Silicon
