Information of the typhoons:
1.egay
2.yolanda
3.pablo
4.falcon
5.merline
to be report(^__^)​

the area in longitudinal wave where particles are closer   is called compression.

It is already classified in the periodic table and sometimes it will be identified and labeled with the symbolic colors. The non-metals can be find in the upper right side, noble gases in the group 18 or the line in the most right side and most of what was left of the elements are metals.