Periodic Table

What are the columns referred to on the Periodic Table of Elements?

• Families or groups

• Periods

What are the rows referred to on the Periodic Table of Elements?

• Families or groups

• Periods

Mendeleev was the first person to arrange the elements into a table. How did he arrange the rows?

• alphabetical 
• density
• melting point
• atomic mass

Tags

NGSS.HS-PS1-1

Which of the following will have similar properties?

• O, S, Se

• O, F, Ne

• N, Ne, Na

• H, K, P

Tags

NGSS.HS-PS1-1

Moseley arranged what we know as the "modern periodic table". How did he arrange it?

• atomic mass

• atomic number

• valence electrons

• number of isotopes

Each column in the periodic table is called a _________ .

• period
• group
• cluster
• unit

How many periods are on the periodic table?

• 5

• 6

• 7

• 8

Which is an alkali metal?

• Magnesium (Mg)

• Iron (Fe)

• Sodium (Na)

• Europium (Eu)

Which is a halogen?

• Helium (He)

• Chlorine (Cl)

• Oxygen (O)

• Neptunium (Np)

The blue elements (left side) are called 

• metals
• nonmetals
• metalloids
• noble gases