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

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

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

Elements in Group 18 on the periodic table are known as the A) halogens B) alkaline earth metals C) transitional metals D) noble gases

What is the symbol for lithium?

What is the symbol for magnesium?

A horizontal row on the periodic table is called A) a period B) a group C) a family D) a series

The number of subatomic particles in an atom of Br is: A) 80e, 80p, 35n B) 35e, 80p, 35n C) 35e, 35p, 35n D) 35e, 35p, 45n

The symbol "O" represents what element?

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

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

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

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