How does the Nebular Theory explain why Pluto is so different from the other outer planets?

Answer explain why it is not possible to deduce a complete order of reactivity.

The chemical formula for emerald is be3al2(sio3)6.an emerald can be decided as

Which of these statements describes the size of an atom? a. an atom is larger than a sheet of aluminum foil. b. an atom is small but can be seen with just our eyes. c. an atom is the size of a plastic building block. d. an atom is tiny and cannot be seen without magnification.