JAMB - Chemistry (1995 - No. 40)
USE THE SECTION OF THE PERIODIC TABLE ABOVE TO ANSWER THIS QUESTION.Which of the indicate an alkali metal and a noble gas respectively?
M and E
G and E
R and L
G and L
解释
The alkali metals are found in group one while the noble gases are found in group zero or eight of the periodic table, therefore G and L belong to groups one and eight respectively.