MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic Chemistrys- Block 3.0Previous Year Questions
Which one of the following properties of alkali metals increases in magnitude as the atomic number reises? (AIPMT 1989)
A.Ionic radius✓ Correct
B.Melting point
C.Electronegatiity
D.First ionization energy
Explanation
In a group, ionic radius increases with increase in atomic number whereas the m.pt. decreases down in a group due to weakening of metallic bonds. Similarly, electronegativity and ionization energy also decrease down the group.
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