Periodic Table

There are more metals than nonmetals on the periodic table.

• True

• False

Valence electrons are...

• the total number of electrons in an atom

• the number of electrons on the first energy shell of an atom

• the number of electrons on the outermost energy shell of an atom

The ______ tells you how many valence electrons an atom has.

• group number

• period number

The ______ tells you how many energy shells an atom has.

• group number

• period number

Which of the following elements would have 2 valence electrons?

• Lithium

• Calcium

• Boron

• Chlorine

Which of the following elements is a non-metal in group 14?

• Carbon (C)

• Silicon (Si)

• Tin (Sn)

• Lead (Pb)

Which pair of elements would most likely have similar properties?

• Calcium (Ca) and cobalt (Co)

• sodium (Na) and chlorine (Cl)

• boron (B) and phosphorus (P)

• oxygen (O) and sulfur (S)

The atomic number is the same as

the---

• atomic mass

• group number

• number of protons

• period number

Metals are located on the

________ side of the

Periodic Table.

• ZIG-ZAG

• LEFT

• RIGHT

• BOTTOM

What is the atomic mass of iron (Fe)?

• 26

• 13

• 55.845

• 23.423