Page 1

www.chemicalelements.com/index.html

p1 #4

www.ask.com/youtube?q=alkali+metals&v=m55kgyApYrY&qsrc=472

P. 2 #5

www.youtube.com/watch?v=DFQPnHkQlZM

#6

www.chemicalelements.com/index.html

#7

www.youtube.com/watch?v=DFQPnHkQlZM

Part 3

#10, 11

www.chemicalelements.com/index.html

#12:a,b,c,d,e

https://www.youtube.com/watch?v=u2ogMUDBaf4

Part 4

www.chemicalelements.com/index.html

#15

https://www.youtube.com/watch?v=QLrofyj6a2s

Part 5

#16

https://www.youtube.com/watch?v=nYFmPYPWfU