Answer:
sorry I don't know the answer of this
They have the same number of valence electrons which, in general, gives them similar oxidation numbers and other similar chemical and physical properties. The similarities are most pronounced in the groups at either side of the standard periodic table, and are least pronounced for the transition and rare earth elements.
The area of the folded napkin is 32 sq in. This is because if you find the area of the napkin normally, you will get 64, because 8*8 is 64. If you divide that by 2, you will get 32.
