Select the correct set of statements regarding change in properties, a

1.	Select the correct set of statements regarding change in properties, as we move left to right in the second period of periodic table. (I) Atomic size decreases (II) Valency remains same (III) Electronegativity increases (IV) Metallic character decreases (1) I, II and III (2) II, III and IV (3) I, II and IV (4) I, III and IV
Answer» (4) I, III and IV Along the period – (i) Size of atoms decreases with increasing effective nuclear charge. (ii) Valence changes depending on the available valence electron and group number. (iii) Electro negativity increases due to decrease in atomic size. (iv) Extreme left are metals then it changes from metal to non-metal.

Select the correct set of statements regarding change in properties, as we move left to right in the second period of periodic table. (I) Atomic size decreases (II) Valency remains same (III) Electronegativity increases (IV) Metallic character decreases (1) I, II and III (2) II, III and IV (3) I, II and IV (4) I, III and IV

Answer»

(4) I, III and IV

Along the period –

(i) Size of atoms decreases with increasing effective nuclear charge.

(ii) Valence changes depending on the available valence electron and group number.

(iii) Electro negativity increases due to decrease in atomic size.

(iv) Extreme left are metals then it changes from metal to non-metal.

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