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Sodium and potassium belong to the same group of the Periodic Table. This is because?

Sodium and potassium belong to the same group of the Periodic Table. This is because?
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  • A Both are metals
  • B Both are soft and lighter than water
  • C Both form cations by losing electrons
  • D Both have identical electronic configuration
  • E Both react with water vigorously
Correct Answer: Option C
Explanation:
They react easily because they lose their 1 valence electron easily to gain their stable octet configuration. Hence, they form the +1 cation easily.

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