. Los elementos del 58 al 71 conforman la serie de los y a qué periodo pertenecen . Los elementos del 90 al 110 conforman la serie de los y pertenecen a periodo:

electron microscopy and scanning tunneling microscopes gives us a greater understanding of atoms by being able to see the atom itself, and lets us see some atomic reactions.

explanation:

8 m/s because for him to get the same amount of energy as ray is putting out, bobby, who weighs half as much as ray, needs to run twice as fast.