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TOPIC:
Periodic Table
Topics
Matter
Mixtures and Pure substances
Atomic Structure and Bonding
Atmosphere and Combustion
Water and Hydrogen
Redox Reaction
Carbon and its Compounds
Nitrogen and its Compounds
Chlorine and its Compounds
Sulphur and its Compounds
Organic Chemistry
Effect of Electricity on Substances
Extraction of metals
Energy Changes
Rates of Reaction and Equilibrium
Pollution
Acids, Bases and Salts
Periodic Table
Question
1
out of
5
If the proton number is 19, the electron configuration will be
2,8,7
2,8,8,3
2,8,18
2,8,8,1
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