The atomic numbers of five elements A, B, C, D and E are 6, 8, 3, 7 and 9 respectively. (i) Which is the element having the highest electropositivity among these elements ? Why? (ii) Which is the element having the least metallic character among these elements ? Why? (iii) What is your conclusion about the relationship between metallic character and electropositivity of an element ?

The atomic numbers of five elements A, B, C, D and E are 6, 8, 3, 7 an

1.	The atomic numbers of five elements A, B, C, D and E are 6, 8, 3, 7 and 9 respectively. (i) Which is the element having the highest electropositivity among these elements ? Why? (ii) Which is the element having the least metallic character among these elements ? Why? (iii) What is your conclusion about the relationship between metallic character and electropositivity of an element ?
Answer» SOLUTION :(i) C. This ELEMENT comes FIRST in the second period / The electropositivity DECREASES along the period / It has only one electron in the outermost shell & can donate electron. (ii) E. This element is towards the END of second period / The metallic character decreases along the period / It accepts electrons. (iii) As the electropositivity increases metallic character also increases.