In the following table, are given eight elements A, B, C, D, E, F, G and H (here letters are not the usual symbols of the elements) of the Modern Periodic Table with the atomic numbers of the elements in parenthesis.
Period - Group 1 - Group 2
2 - A(3) - E(4)
3 - B(11) - F(12)
4 - C(19) - G(20)
5 - D(37) - H(38)
1. What is the electronic configuration of F?
2. What is the number of valence electrons in the atom of F?
3. What is the number of shells in the atom of F?
4. Write the size of the atoms of E, F, G and H in decreasing order.
5. State whether F is a metal or a non-metal.
6. Out of the three elements B, E and F, which one has the biggest atomic size?
1. F has electronic configuration 2, 8, 2.
2. F has 2 valence electrons. There are three shells in ‘F’.
3. H > G > F > E is decreasing order of size of atoms.
4. ‘F’ is a metal.
5. ‘B’ is having biggest atomic size among B, E and F.