In general, the properties that decrease and increase down a group in the periodic table, respectively, are:

Atomic radius and electronegativity.

Electronegativity and electron gain enthalpy.

Electronegativity and atomic radius.

Electron gain enthalpy and electronegativity.

In general, the properties that decrease and increase down a group in

1.	In general, the properties that decrease and increase down a group in the periodic table, respectively, are:
A.	Electronegativity and electron gain enthalpy.
B.	Electronegativity and atomic radius.
C.	Atomic radius and electronegativity.
D.	Electron gain enthalpy and electronegativity.
Answer» C. Atomic radius and electronegativity.