The answer is actually 13 you divide 55 miles by the hours to get 12.9 which you round to 13
Scientific theory's will always change based upon new evidence. The 'Big Bang Theory' is always changing when new evidence arises.
However, on the other hand, scientific laws will never change.
The other ion would be Oxygen or O1.
Answer:
Explanation:
electrons have a minus charge. There are more of them than protons.
8 - 11 = -3 is the charge of the ion. (at atom that has a charge is an ion).
Typical metalloids have a metallic appearance, but they are brittle and only fair conductors of electricity. Chemically, they behave mostly as nonmetals. They can form alloys with metals. Most of their other physical properties and chemical properties are intermediate in nature.