Answer:
Number of protons
Explanation:
Elements are arranged in the periodic table in an order of increasing number of protons. It's called the proton number or atomic number.
Answer:
False.
Explanation:
Noble gasses are extremely unreactive. They are called 'noble' because they do not mix with almost any other element, save flouride. They all, except helium, have a complete first and second valence level, meaning ten total electrons. Because of this they are very stable and do not want to receive any electrons or give any.
Answer:
Explanation: Bromine, the dark red color disappears quickly as the atoms of bromine bond with the atoms of carbon in the double bond.
Answer:
Byzantine war and world war II
Explanation: