What is the atomic number of an atom?
2 answers:
It identifies a chemical element, and is the charge number of the nucleus. for example, Hydrogen has 1... Oxygen has 8... Lithium has 3... etc
The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of every atom of that element.
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Answer:
22 kph
Explanation:
You simply divide the distance and the time. 66/3 = 22.
It would be 3C + 4H2 -> C3H8
Because they are not on the periodic tsble they are on the back and they goes together
