Question

Which element is the odd one out:
Rubidium, Caesium, Lithium or Thallium?

Answer 1

Answer:

Thallium

Explanation:

Lithium, Caesium And Rubidium belong to the single group that is Group 1-A

while thallium belongs to f block which is a 3D structure of the 3rd group.

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Answer 2

◦•●◉✿Answer✿◉●•◦

◦•●◉✿Thallium is odd one out of these Element✿◉●•◦

◦•●◉✿Explaination✿◉●•◦

• ◦•●◉✿Rubidium, Caesium, lithium these are group 1 elements these are very reactive✿◉●•◦✿◉●•◦✿◉●•◦