Question

Choose the incorrect statement.

• A. Chemical reactivity tends to be high in group 1 metals, lower in elements in middle and increases to maximum in the group 17.
• B. Halogens have very high negative electron gain enthalpy.
• C. Noble gases have large positive electron gain enthalpy.
• D. Decrease in electronegativeities across a period is accompanied by an increase in non – metallic properties.

Answer 1

Answer: (D)

Decrease in electronegativeities across a period is accompanied by an increase in non – metallic properties.

Answer 2

: electronegativity increases across a period.