Periodic table, metals vs non-metals, ions

What is the name of the columns (up and down) of the periodic table?

• Periods

• Groups

• Triads

• Rows

In the chemical formula: NaHCO₃, how many different elements are there?

• 3

• 6

• 5

• 4

Based on the trend (pattern) shown, what would be the melting point of francium (which is below caesium, Cs)?

• 10^oC

• 15^oC

• 20^oC

• 30^oC

Where would you find non-metals in the periodic table?

• Far right

• Far left

• Centre

• Bottom

How many atoms total are present in one molecule of ethane, C₂H₆

• 5

• 7

• 9

• 8

What is the formula of this molecule?

Which one of these diagrams represents the molecule carbon monoxide, CO.

• A

• B

• C

• D

Which one of these is a chemical property?

• Density

• Melting point

• Flammability

• Ductile

How many protons does this atom have?

How many neutrons does this atom have?