Properties of Elements in the Periodic Table

Name the Scientist who was the father of the Periodic table.

• Albert Einstein
• Isaac Newton
• Niels Bohr
• Dmitri Mendeleev

What does Atomic number in the periodic table represent?

• The atomic number represents the total number of electrons in an atom.
• The atomic number is the number of neutrons in an atom.
• The atomic number represents the number of protons in an atom.
• The atomic number indicates the mass of an atom in atomic mass units.

When did Mendeleev start organizing the Periodic Table?

• 1901
• 1886
• 1875
• 1860

TRUE OR FALSE.

Elements were arranged by increasing Atomic number from left to right of the Periodic table.

• TRUE

• FALSE

TRUE OR FALSE.

There are 83 known elements in the Periodic table.

• TRUE

• FALSE

Which group of elements are found to the left of the staircase in the Periodic table.

• Metals
• Nonmetals
• Noble gases
• Metalloids

What is a Group or Family in the Periodic table?

• A group or family in the periodic table is a vertical column of elements with similar chemical properties.
• A group is a collection of elements that have the same atomic number.
• A family refers to elements that are chemically inert and do not react.
• A group is a horizontal row of elements with different properties.

Which element is found on the "wrong side" of the periodic table?

• Gold
• Oxygen
• Hydrogen
• Carbon

Two of the Periodic table elements are liquids.

• Carbon and Nitrogen

• Mercury and Bromine

• Calcium and Magnesium

• Hydrogen and Chlorine

What is a Period in the Periodic table?

• A period is a horizontal row of elements in the periodic table.
• A period is a vertical column of elements in the periodic table.
• A period refers to the atomic mass of an element.
• A period is a group of elements with similar properties.