2. Atoms & Elements

What is the average atomic mass of gallium (Ga) as listed on the periodic table?

Which of the following is closest to the atomic mass of magnesium (Mg)?

What is the average mass of a single sulfur atom in grams?

Which of the following is closest to the atomic mass of iron (Fe)?

Which of the following subatomic particles has the greatest mass?

Which of the following is the number of protons in a neutral atom of neon (Ne)?

Which of the following is closest to the atomic mass of carbon?

Which element in period 2 of the periodic table has an atomic mass closest to 11?

What is the average atomic mass of bromine (Br) as listed on the periodic table?

What is the average mass of a single argon atom in grams?

Which of the following values is closest to the atomic mass of a helium atom?

Which of the following elements has an atomic mass closest to 131.3?

What is the atomic number of lithium?

What is the atomic number of potassium?

Which of the following is closest to the atomic mass of boron?