Modern Periodic Table Quiz

The elements in the modern periodic table is ordered according to:

• atomic weight.

• chemical and physical properties.

• atomic number.

• group.

Elements which are in the same horizontal row are said to be in the same:

• Group

• Period

• Block

• Family

Elements which are in the same vertical column are said to be in the same:

• Group

• Period

• Block

• None of the above.

Elements in group one will have _______ valence electron(s).

• 1

• 2

• 1 or 2

Elements in group 7 will have ______ valence electrons.

• 10

• 17

• 2

• 7

From L to R on the periodic table, the number of electrons ____.

• increases across the period

• decreases across the period

• increases down the group

• decreases down the group

Tags

NGSS.HS-PS1-1

What symbol does H stand for?

• Hydrogen
• Heliu
• Hefnium
• Mercury

What period is Magnesium (Mg) in?

• 3
• 12
• 24.3
• 36

What row is Boron (B) is?

• 13
• 2
• 10.81
• 5

What is the average atomic mass of Oxygen (O)?

• 8
• 15.99
• 2
• 14.00