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WorksheetsExploring the Periodic Table
Total questions: 30
Worksheet time: 30mins
What is the chemical symbol for the element Oxygen?
O
Ox
Oy
Og
Which element has the atomic number 1?
Helium
Hydrogen
Lithium
Carbon
What is the chemical symbol for Sodium?
S
So
Na
Sd
Which element is represented by the symbol "Fe"?
Fluorine
Francium
Iron
Fermium
What is the atomic number of Carbon?
4
6
8
12
Which of the following elements is a noble gas?
Nitrogen
Neon
Sodium
Nickel
Which element is found in Group 1 and Period 2 of the Periodic Table?
Lithium
Sodium
Potassium
Magnesium
If an element has 17 protons, what is its chemical symbol?
Cl
Ar
K
Ca
Which element would you expect to be a good conductor of electricity: Sulfur, Copper, or Oxygen?
Sulfur
Copper
Oxygen
None of the above
Which of the following elements is most likely to form a negative ion?
Sodium
Chlorine
Magnesium
Aluminum
Which element is in the same period as Phosphorus but in Group 2?
Magnesium
Calcium
Beryllium
Strontium
If you move from left to right across a period in the Periodic Table, what generally happens to the atomic number?
It decreases
It increases
It stays the same
It first increases, then decreases
A student claims that all elements in Group 18 are gases at room temperature. Use evidence from the Periodic Table to support or refute this claim.
Support: All Group 18 elements are noble gases and are gases at room temperature.
Refute: Some Group 18 elements are solids at room temperature.
Refute: Some Group 18 elements are liquids at room temperature.
Support: Group 18 elements are all metals.
Explain why elements in the same group of the Periodic Table have similar chemical properties.
They have the same number of protons.
They have the same number of neutrons.
They have the same number of electrons in their outer shell.
They have the same atomic mass.
A scientist discovers a new element with properties similar to sodium and potassium. In which group of the Periodic Table should the scientist look for this element?
Group 1
Group 2
Group 17
Group 18
Predict which element is more reactive: Fluorine or Chlorine. Explain your reasoning.
Fluorine, because it is higher up in Group 17 and has a stronger attraction for electrons.
Chlorine, because it is lower in Group 17 and has more protons.
Both are equally reactive.
Neither is reactive.
What is the chemical symbol for the element with atomic number 12?
Mg
Mn
Mo
Ma
Which element is a liquid at room temperature?
Mercury
Gold
Silver
Copper
What is the atomic number of Neon?
8
9
10
11
Which element is represented by the symbol "K"?
Krypton
Potassium
Calcium
Nickel
Which of the following elements is a metalloid?
Silicon
Oxygen
Iron
Neon
If an atom has 11 protons, how many electrons does it have in a neutral state?
10
11
12
13
Which element is in Period 3 and Group 17?
Chlorine
Bromine
Fluorine
Iodine
Which of the following elements is most likely to be found as a diatomic molecule in nature?
Nitrogen
Sodium
Calcium
Argon
Which element would you expect to have properties most similar to Magnesium?
Calcium
Sodium
Aluminum
Potassium
A student is given a sample of a shiny, malleable element that conducts electricity. Based on these properties, to which category of elements does it most likely belong?
Metals
Nonmetals
Metalloids
Noble gases
Explain why hydrogen is placed separately from other elements in the Periodic Table.
It is a metal.
It has unique properties and does not fit perfectly into any group.
It is a noble gas.
It is a halogen.
A student notices that as you go down Group 1, the elements become more reactive. Use your knowledge of atomic structure to explain why.
The atoms get smaller, so electrons are held more tightly.
The atoms get larger, so the outer electron is farther from the nucleus and more easily lost.
The number of protons decreases.
The number of neutrons increases.
A scientist wants to create a new material that does not conduct electricity and is brittle. Which type of element should they use?
Metal
Nonmetal
Metalloid
Noble gas
Which of the following best explains why elements are arranged in order of increasing atomic number in the Periodic Table?
It groups elements with similar colors together.
It ensures that elements with similar chemical properties are in the same group.
It arranges elements by their mass.
It separates metals from nonmetals.
