RRB Group-D Model Paper 19 with answers for online practice

EXPLANATION:

• The periodic table is the tabular arrangement of chemical elements.
• The Modern Periodic table consists of 18 groups and 7 periods

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• As we go up in the periodic table, the number of shells decreases and thus losing electrons becomes difficult for the atom.
• Hence while moving up a group the metallic character decreases. Therefore option 3 is correct.
• As we move from left to right in a periodic table the tendency to gain electrons reduces. While moving left to right in a period the metallic character reduces.