Question

Write the electronic configuration of 13Al, 6C and 9F and assign the group and the period to which they belong.​

Answer 1

Answer:

4

Be,

6

C,

8

O,

5

B,

13

Al

Electronic configuration of the following elements is:

4

Be=2,2

6

C=2,4

8

O=2,6

5

B=2,3

13

Al=2,8,3

13

Al is the most electropositive element among these because

4

Be,

6

C,

8

O,

5

B belong to the same period, but

13

Al belongs to next period. According to the trend, the electropositive character of an element increases as we move from top to bottom in a group of the periodic table. This happens as the tendency of an atom to lose electrons increases due to a decrease in nuclear charge and an increase in the number of shells.