How to Read the Periodic Table

The horizontal (side to side) rows in the Periodic Table are called

• groups

• families

• periods

• atomic numbers

Sodium (Na) is found in period 

• 3

• 2

• 4

• 1

Tags

NGSS.MS-PS1-1

What group number are the noble gases?

• 17

• 18

• 14

• 15

The periodic table is arranged by increasing ______ ______, which is equal to the number of protons.

• atomic mass

• atomic number

The ______ are located on the left side of the zig-zag 'staircase' on the Periodic Table. (except for Hydrogen)

• metals

• non-metals

• metalloids

You read the periodic table from left to right starting at the top left corner with Hydrogen, increasing the number of _______ by 1 each time you move over a square.

• protons

• neutrons

• electrons

Tags

NGSS.MS-PS1-1

The ___________ are located on the right side of the zig-zag 'staircase' on the Periodic Table (except for Hydrogen)

• metals

• non-metals

• metalloids

What does the atomic number of an element represent in the periodic table?

• The number of protons in an atom

• The number of neutrons in an atom

• The number of electrons in an atom

• The atomic mass of the element

Which of the following elements is located in Group 1 of the periodic table?

• Helium

• Sodium

• Chlorine

• Argon

What is the significance of the period number in the periodic table?

• It indicates the number of valence electrons

• It indicates the number of electron shells

• It indicates the atomic mass

• It indicates the reactivity of the element