1.

Name or state the following with reference to the elements of the modern periodic table.1. The period and group to which the element ‘X’ with electronic configuration 2, 8, 8, 2 belongs. 2. The more electronegative element from the elements Ar, S, Cl of period-3.3. The element with the largest atomic size from the elements of period-1, 2 and 3. 4. The element with the highest ionisation potential from the elements of period 1, 2 and 35. The element from the elements Li, Na, K which has maximum metallic character. 

Answer»

1. Group 2, period 4

2. Cl

3. Sodium (Na)

4. Helium (He) 

5. Potassium



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