QUIZZES AGAIN...

HI ALL... YEAY.. LET'S REVISE GROUP 18 ELEMENTS....

try to work out this quiz... very easy!!!!!

QUIZZES

HI....

Now,after you have learnt about the Group 1 elements which also known as H>A>L>O>G>E>N, why not test yourself with this short quizzes.. time allocates for this activity is 20 minutes!!!!!