Ch. 5 The Periodic Table

What does the C represent?

• atomic mass

• atomic number

• element name

• chemical symbol

The horizontal row on the periodic table is called a

• group

• family

• period

• atomic number

A vertical column is called...

• group
• tower
• period
• crew

The number at the bottom of each square on the periodic table is the ...

• atomic number
• atomic mass
• chemical symbol
• element name

What is the chemical symbol for Lithium?

• H
• He
• Li
• N

How did Mendeleev arrange the elements?

• alphabetical 
• density
• melting point
• atomic mass

The number at the top of each square on the periodic table is the ...

• atomic number
• atomic mass
• Chemical Symbol
• Element Name

___________ are good conductors of heat and electricity.

• Metals

• Nonmetals

• Metalloids

• Noble Gases

A ___________ has both properties of metals and nonmetals.

• Metals

• Metalloids

• Nonmetals

• Noble Gases

Which of the following best describes valence electrons?

• The innermost electrons in an atom

• The electrons in the outermost shell

• The electrons that have moved energy shells to emit light

• The electrons that are positively charged