Periodic Table of elements

A tabular arrangement of chemical elements based on increasing atomic numbers.

• Periodic Table of Elements

• Periods or Series

• Groups or Families

• Transition Group

Vertical columns in the Periodic Table of Elements are called ____________.

• Period or Series

• Group or Families

• Periodic Trends

• Atomic Number

Sodium (Na) is found in group 

• 1
• 2
• 3
• 4

Elements in the same ________ are more chemically similar.

• group
• period
• club
• table

Which elements have the most similar chemical properties?

• K and Na
• K and Ca
• K and Cl
• K and S

Which elements have the most similar chemical properties?

• K and Na
• K and Ca
• K and Cl
• K and S

Noble gases are sometimes called "inert gases." What can you infer about the meaning of the word "inert" in chemistry?

• It refers to substances that easily lose electrons.

• It refers to substances that do not react with other substances.

• It refers to substances that have strong electrochemical charges.

• It refers to gases.

Which of the following is a true statement?

• Periods form horizontal rows; groups form vertical columns.

• Groups form horizontal rows; periods form vertical columns.

• Categories form horizontal rows; gases form vertical columns.

• Gases form horizontal rows; categories form vertical columns.

___________________ are positively charged particles located in the nucleus of an atom.

• Electrons

• Neutrons

• Protons

• Isotopes

In an element box, the number at top is the

• atomic number

• atomic name

• atomic mass

• atomic symbol