Which one of the following is a main-group nonmetal element in period number 3 of the periodic table?
A) bromine
B) selenium
C) sodium
D) gallium
E) sulfur
F) none of the above
Answer: E
Which one of the following is a main-group nonmetal element in period number 3 of the periodic table?
A) bromine
B) selenium
C) sodium
D) gallium
E) sulfur
F) none of the above