Chemistry
The element with the largest atomic size from the elements of period-1, 2 and 3.
Answer
Sodium
Reason — As atomic size decreases across a period (from left to right) and increases down a group hence sodium will have the largest atomic size from the elements of period-1, 2 and 3 because it is placed in period 3 and group 1 and is at the lower left side among the given elements.
Related Questions
The period and group to which the element 'X' with electronic configuration 2, 8, 8, 2 belongs.
The more electronegative element from the elements Ar, S, Cl of period-3.
The element with the highest ionization potential from the elements of period 1, 2 and 3.
The element from the elements Li, Na, K which has maximum metallic character.