Question

In what respect electronic configuration of hydrogen and halogens are similar?

• A. Hydrogen and halogens have one electron in their outermost shell.
• B. Hydrogen and halogens have one electron less than the noble gas configuration.
• C. Hydrogen and halogens can lose one electron to form positive ions
• D. Hydrogen and halogens show noble gas configuration.

Answer 1

Answer: (B)

Hydrogen and halogens have one electron less than the noble gas configuration.

Answer 2

: $H - 1s^{1};He - 1s^{2}$

$x - ns^{2}np^{5};Ne - 1s^{2}2s^{2}2p^{6}$

Both have one electron less than the nearest noble gas configuration.