A main group atom has an atomic number 14. If there are 2 electrons in the 1st energy level and 8 electrons in the 2nd energy level, to what group of the periodic table does this element belong? A) 12 B) 2 C) 14 D) 6

Which of the characteristics listed above are physical characteristics? A) 1, 2, 3, 4 B) 2, 3, 4 C) 1, 2, 4 D) 1, 4

A major use of the metalloids is in the manufacture of A) garbage pails B) semiconductors C) light bulbs D) soaps

In a periodic table, vertical columns are called: A) rows B) periods C) groups D) noble gases

Which element is not found in group 12 of the periodic table? A) Zn B) Hg C) Ga D) Cd

The symbol "K" represents what element?

Which element in group 16 gains electrons most easily? A) S B) O C) Po D) Se

The melting point of gallium is what type of characteristic? A) elemental property B) chemical property C) physical property D) magnetic property

In the box above the number 31 represents the A) atomic number B) mass number C) atomic mass D) number of neutrons

What is the element found in the periodic table in group 4 and period 6? A) hafnium B) selenium C) gadolinium D) chromium

The symbol "O" represents what element?

The staircase line on the periodic table separates A) metalloids from metals B) transition elements from representative elements C) metals and non-metals D) metalloids from nonmetals