2. Atoms & Elements

Approximately how many elements are currently recognized in the periodic table?

How many naturally occurring elements are found on the periodic table?

Using your periodic table, which of the following element symbols represents potassium?

As of 2024, how many elements are officially recognized on the periodic table?

Which of the following is the atomic number of chlorine?

Which of the following is the chemical symbol for silver?

What is the atomic number of barium?

Which element has 16 protons in its nucleus?

Which of the following is the atomic number of iron (Fe) on the periodic table?

Which of the following is a two-letter chemical symbol for an element on the periodic table?

Which of the following is the chemical symbol for the element gold?

Which element has an atomic number of 29?

Which of the following is an element?

Which of the following best identifies a chemical element on the periodic table?

Which of the following conventions is used for chemical element symbols on the periodic table today?