Question

Study the table given below. Use only the letters given in the table to answer the questions. Do not identify the elements.

1. State the valency of element ‘G’.
2. Which element can exhibit catenation?
3. Write the formula of the compound formed between ‘M’ and ‘P’.

Answer 1

1. G possesses five electrons in its outermost shell since it belongs to group V A. The valency of G is −3.
2. As the element in group IV A exhibits catenation, group E may also exhibit it.
3. As M is in group II A, its valency is +2, and because P is in group VII A, its valency is −1. The compound between M and P has the formula MP₂.