1. Which one of the following does not increase while moving down the group of the periodic table?

2. On moving from left to right in a period in the periodic table, the size of the atom

3. An atom of an element has the electronic configuration 2, 8, 2. To which group does it belong?

4. In modern periodic table, elements are arranged according to their

5. In which group are inert elements placed? ‘

6. Which of the following sets of atomic number belong to that of alkali metals?

7. The element with atomic number 14 is hard and forms acidic oxide and a covalent halide. To which of the following categories does the element belong?

8. The amount of energy released when one or more electrons is added to the neutral atom is

9. The valence shell of element A contains 3 electrons while the valence shell of element B contains 6 electrons. If A combines with B, the probable chemical formula of the compound is

10. Arrange the following elements in the order of their increasing non-metallic character. Li, O, C, Be, F