Question

31. Na, K, Cu, Li odd man out
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Answer 1

Answer:

copper(cu) is the odd one .

Answer 2

Cu or Copper is the odd one.

• In the modern periodic table, different chemical elements are arranged in different groups, according to their chemical nature.
• Similarly, Sodium (Na), Potassium (K) and Lithium (Li) are situated at group 1 of the modern periodic table. (also categorised as the alkali metals).
• On the other hand, the copper or Cu is situated at the group 11 of the periodic table.
• That's why, copper is the odd one here.