As of July 2009, approximately how many elements are there?
How many occur naturally (not synthesized by human monkeys)?
Identify a Group 8B element:
Identify a Period 5 Noble Gas:
Sodium, Lithium and Potassium are in what family?
Bromine and Iodine are in what family?
What is the symbol for uranium?
What are the symbols for gold and silver?
What are the symbols for nitrogen, carbon and oxygen?
Which is heavier, Gallium or Tin?
What is the atomic mass of selenium?
What is the Latin name for tin?
What is the symbol for tin?
What is heavier, a molecule consisting of four hydrogen atoms and one carbon atom, or a molecule of water?
List the symbols for ten metals:
List two metals that are magnetic:
Listen to Tom Lehrer’s Song, the Elements on YouTube
How many protons does an atom of carbon have?
How many neutrons are in Carbon-12? vs Carbon-14?
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