Practice Sheets & eNotes-Periodic Classification of Elements

Periodic classification of elements Worksheet-4

1. Atom of which of the following element has smallest size?

A. C                     B. Mg                  C. O                     D. S

2. If the valence shell of atom of an element has 7 electrons, the element belongs to the group of_____.

A. Alkali metals                            B. Inert metals

C. Noble gases                               D. Halogens

Periodic classification of elements Worksheet-5

1. The number of elements in each of the short periods in the periodic table is_____.

A. 2                     B. 8                     C. 18                   D. 32

2. In the long form of the periodic table, all the non- metals are placed in _____.

A. s-block          B. p-block          C. d-bock           D. f-block

Periodic classification of elements Worksheet-6

1. As we go from left to right in period two of the periodic table, gram atomic volume of the elements ____.

A. Will change indefinitely

B. Increases at a constant rate

C. First increases then decrease

D. First decreases and then increases

2. In the main group elements (i) as we proceed down the same group in the periodic table and (ii) as we proceed from left to right in the same period, the atomic radius

A. (i) Increase continuously; (ii) Decreases continuously

B. (i) Decreases continuously; (ii) Increases continuously