Metalloids

What is the smallest group on the periodic table?

• Metals

• Metalloids

• nonmetals

Which group do the elements Boron and Antimony belong to?

• Metals

• nonmetals

• metalloids

Check all of the characteristics Metalloids have in common with metals:

• lustrous

• mostly solid at room temperature

• mostly gas at room temperature

• brittle

metalloids can form ____________

• water

• wood

• glass

• gas

metalloids are _________________

• good conductors

• semiconductors

• bad conductors

How many total metalloids are there on the periodic table?

• 7

• 14

• 28

• 35

Metalloids in group 14 have _______ valence electrons and will gain or lose _______ electrons to have a full outer shell.

• 4,4

• 4,3

• 4,8

• 2,4

Which property do metalloids share with nonmetals?

• Both are gases at room temperature.

• Both can react to form acidic compounds.

• Both are very poor electrical conductors.

• Both can be pounded into thin sheets.

Which element in period 3 on the periodic table is a metalloid?

• magnesium (Mg)

• aluminum (Al)

• silicon (Si)

• sulfur (S)

For metalloids on the periodic table, how do the group number and the period number relate?

• The lower the group number, the lower the period numbers, so the metalloids are found in a diagonal moving down from left to right.

• The lower the group number, the higher the period numbers, so the metalloids are found in a diagonal moving up from left to right.

• The higher the group number, the lower the period numbers, so the metalloids are found in a diagonal moving down from left to right.

• The higher the group number, the higher the period numbers, so the metalloids are found in a diagonal moving up from left to right.