Periodic Table Review

Which color on the image of the periodic table corresponds with the alkaline earth metals.

• yellow

• dark yellow

• blue/green

• teal

Answer explanation

The alkaline earth metals on the periodic table are represented by the color teal. This color corresponds to the correct answer choice.

Sodium (Na) is found in period 

• 3

• 2

• 4

• 1

Answer explanation

Sodium (Na) is found in period 3. This is the correct choice.

The vertical (up and down) columns in the Periodic Table are called

• groups

• towers

• periods

• atomic numbers

Answer explanation

The vertical columns in the Periodic Table are called groups. They represent elements with similar properties and valence electrons.

a negatively charged subatomic particle that orbits the nucleus of an atom

• proton

• neutron

• electron

• matter

Answer explanation

An electron is a negatively charged subatomic particle that orbits the nucleus of an atom. It is responsible for the electrical conductivity and chemical properties of elements.

The vertical (up and down) columns in the Periodic Table are called

• groups

• towers

• periods

• atomic numbers

Answer explanation

The vertical columns in the Periodic Table are called groups. They represent elements with similar properties and valence electrons.

What does the 6 represent?

• atomic mass

• atomic number

• element name

• chemical symbol 

Answer explanation

The number 6 represents the atomic number, which is the number of protons in an atom's nucleus. It uniquely identifies an element and determines its position on the periodic table.

The vertical (up and down) columns in the Periodic Table are called

• groups

• towers

• periods

• atomic numbers

Answer explanation

The vertical columns in the Periodic Table are called groups. They represent elements with similar properties and valence electrons.

The atomic number of this pictured element is

• 28

• 58.6934

• Ni

• Nickel

Answer explanation

The atomic number of the element Nickel (Ni) is 28. Therefore, the correct choice is 28.

What period is Lead (Pb) in?

• 6

• 4

• Metals

• 4A

Answer explanation

Lead (Pb) is in period 6. It is a metal.

Sodium (Na) is found in group 

• 1

• 2

• 3

• 4

Answer explanation

Sodium (Na) is found in group 1. This is the correct choice.