Question

Which of the following statement is not correct regarding hydrogen atom?

• A. It resembles with halogens in some properties
• B. It resembles with alkali metals in some properties
• C. It cannot be placed in first group of periodic table
• D. It is the lightest element

Answer 1

Answer: (C)

It cannot be placed in first group of periodic table

It is placed in the first group of periodic table due to its resemblance to that of alkali metals, i.e. outer electronic configuration.