Test 3 Review - Atoms and the Periodic Table

Table sugar (C₁₂H₂₂O₁₁) is a ---.

True or False: All gases are noble gases.

True or False: Most metals are liquids at room temperature.

Aluminum (Al), Sodium (Na), and Chromium (Cr) would all be classified as what?

How would you classify these atoms?

What happens to the atomic number as you move across a period?

Phosphorus (P), Argon (Ar), and Hydrogen (H) would all be classified as --.

When the elements in group 17 bond with alkali metals they form --.

Potassium is very soft, silvery, and it explodes violently in water.  What is Potassium (K)?

What particles are found in the nucleus of an atom?

How would you classify these atoms?

How would you classify this substance?

These red elements are the metalloids.  Which property best describes the metalloids?

True or False: Neon (Ne), Argon (Ar), and Krypton (Kr) are noble gases.

Fluorine often has 9 protons and 10 neutrons in its nucleus.  What is it atomic number?