Task List #7 - The Periodic Table of Elements

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

A one or two letter abbreviation  used to represent an element is called a(n) ________

• chemical symbol
• element sign

Vertical (up and down) columns in the periodic table are called _________ of elements and have similar properties. 

• groups
• periods

The horizontal (left to right) rows on the periodic table are known as

• periods.
• atoms.
• groups or families.
• valence electrons.

One physical characteristic of metals is...

• Luster (shine)
• Weight
• All are gases. 

_________are not good conductors of heat or electricity.

• Metals
• Metalloids
• Nonmetals

The blue elements are called

• The blue elements are called metals.

• The blue elements are called nonmetals.

• The blue elements are called metalloids.

• The blue elements are called noble gases.

The atoms along the staircase are called

• The atoms along the staircase are called metals.

• The atoms along the staircase are called nonmetals.

• The atoms along the staircase are called metalloids.

• The atoms along the staircase are called noble gases.

Which of the following is not a property of metals?

• brittle
• malleable
• lustrous
• conductive

Which element is found in group 16 period 3?

• Sulfur (S)
• Selenium (Se)
• Chlorine (Cl)
• Carbon (C)