When metals, nonmetals, and metalloids are compared according to luster, which is the best description of the appearance of metalloids? A. Dull B. Shiny C. Powdery D. Either shiny or dull

Which of the following lists of properties best describes nonmetals? A. brittle, shiny, conductor B. malleable, shiny conductor C. brittle, dull, insulator D. Malleable, dull, insulator

What is the family group # and period for this element?

A researcher wants to experiment with an element that reacts like sulfur (S) but has a greater atomic mass. Which elements should the researcher select for the experiment?

A student hypothesizes that sodium (Na) has different chemical properties than magnesium (Mg). Which of the following statements bests supports this student’s hypothesis?

What period is this element in?

What must be true of the element represented by the "X"? A It will have 6 total electrons. B It will have chemical properties similar to C. C It will have 28 protons. D It will have a mass greater than 30.

What color is the blue section of the periodic table.

Which of the following is true for elements listed in the same column of the periodic table? A have similar chemical properties. B have the same number of protons. C mass of their atoms are similar. Datoms are the same size

Based on the Periodic Table, which of the following elements has physical and chemical properties most like potassium? A Sodium B Calcium C Bromine D Neon

What common property do sulfur and oxygen have in common? A Both are metals B Both are gases C Both have 6 valence electrons D Sulfur and oxygen do not have a common property

Why are noble gases nonreactive/ stable/ or least reactive?