All the elements

CHEMISTRY · Single correct · A Level · Chemistry · Periodicity and periodic trends · Periodicity and periodic trends

Problem

All the elements, on the basis of the long form of the periodic table, can be divided into four blocks: ss, pp, dd, and ff. The ionization energies, electron affinities, electronegativities, atomic and ionic radii, and other physical properties usually show a regular pattern of change within a group or along a period, with some irregularities. On moving from Li to F in the second period, there would be a decrease in: (1) Non-metallic property (2) Atomic radius (3) Ionization potential (4) Electronegativity

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