(i) The elements of the second period along with their atomic number in parentheses are given below:
B (5), Be (4), 0(8), N(7), Li(3), C(6), F(9)
(a) Arrange them in the same order as they are in the periodic table.
(b) Which element has the largest and smallest atom ?
(ii) Why does the atomic radius change as we move from left to right in a period?