J-1: The Structure of Matter Review

This is the formula for Formic Acid. How many TOTAL ATOMS are in this compound?

• 4
• 5
• 6

This is the formula for Formic Acid. How many DIFFERENT ELEMENTS in this compound?

• 3
• 4
• 5

Each of these cubes has a volume of 125 mL. The mass of each cube is shown in the image. What must be true about these cubes?

• Cube A is twice as dense as Cube B.
• Cube B is twice as dense as Cube A.
• The density of Cube A is equal to the density of Cube B.

Part of the periodic table is shown. Using the information from the chart what is the ATOMIC MASS of Chlorine?

• 26
• 35.5
• 17

Part of the periodic table is shown. Using the information from the chart what is the SYMBOL for Fluorine?

• F
• O
• Cl

Part of the periodic table is shown. Using the information from the chart what is the ATOMIC NUMBER for Aluminum?

• 1
• 13
• 27

Part of the periodic table is shown. Using the information from the chart what is the number of NEUTRONS for gold? (* Think subtraction)

• 118
• 79
• 197

Part of the periodic table is shown. Using the information from the chart what is the number of ELECTRONS for Antimony?

• 51
• 122
• 71

The periodic table entry for boron, carbon, nitrogen, aluminum, silicon, phosphorus, gallium, germanium, and arsenic are being shown along with the classification legend (key) below. What classification (metals, metalloids, or nonmetals) shows up the most often for just these 9 elements?

• Metals
• Metalloids
• Nonmetals

A molecule of sodium chloride (NaCl) has one atom of sodium and one atom of chlorine. Which model would best represent this substance?

• A
• B
• C
• D