13. Calculate the percentage of Carbon and Hydrogen in CH4
14. Give the equations Li and Na heated with oxygen.
15. What are the factors which affect the ionization energy?
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Explanation:
ans 13 = The formula weight of methane is [12.01 + (4 x 1.008)] = 16.04. In terms of mass, methane is (4.032/16.04) x 100 = 25.13% hydrogen and (12.01/16.04) x 100 = 74.87% carbon
ans 14 = I don't know
ans 15 = 3 Factors Affecting Ionisation Energy
Size of the positive nuclear charge. As the nuclear charge increases, its attraction for the outermost electron increases and more energy is required to remove an electron. ...
Size of atom (distance of outermost electron from the nucleus) ...
Screening (shielding) effect of inner shell electrons.
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