Question 1
Identify the noble gas in the following list.
◦ oxygen
◦ helium
◦ chlorine
◦ nitrogen
◦ gold
Question 2
Semiconductors are located in the periodic table on (or in) the ________.
◦ last period of the table
◦ left side of the table
◦ first period of the table
◦ right side of the table
◦ line dividing metals from nonmetals in the table