Elements on the periodic table are arranged in increasing order of ______________.

• number of neutrons
• atomic number
• isotopes
• charge

What element is in period 3, group 14?

• He
• C
• N
• Si

A row on the periodic table is called a ______________.

• group
• period
• column
• set

Bromine (Br) is in period ___, and group ____.

• 3,  17
• 4,  17
• 17,  3
• 17,  4

How is atomic mass calculated?

• protons + electrons
• neutrons + electrons
• protons + neutrons
• mass - protons

Which element below would have similar chemical properties to aluminum (Al)?

• Gallium (Ga)
• Silicon (Si)
• Beryllium (Be)
• Fluorine (F)

If two elements are in the same __________, they share similar chemical properties.

• row
• period
• table
• group

True or False:  Mendeleev left blank spaces in his periodic table because some elements were not yet discovered, but he predicted where they would fit in on the table.

• True
• False

What element is in period 5, group 11?

• Copper (Cu)
• Niobium (Nb)
• Silver (Ag)
• Gold (Au)

How many neutrons are in an atom of zinc if its atomic number is 30 and its mass number is 65?

• 25
• 30
• 35
• 65