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Which two elements, in the table below, are most likely to belong to the same gr

ID: 538716 • Letter: W

Question

Which two elements, in the table below, are most likely to belong to the same group of the periodic table?

Successive Ionization energy (kJ mol-1)

Element

1st

2nd

3rd

4th

5th

A

906

1763

14855

21013

B

425

3058

4418

5883

7982

C

744

1457

7739

10547

13636

D

1257

2303

3828

5164

6548

E

793

1583

3238

4362

16098

A and B

D and E

A and E

A and C

B and E

Element

1st

2nd

3rd

4th

5th

A

906

1763

14855

21013

B

425

3058

4418

5883

7982

C

744

1457

7739

10547

13636

D

1257

2303

3828

5164

6548

E

793

1583

3238

4362

16098

Explanation / Answer

answer : A and C

Explanation :

for A the first and 2nd ionization energies are slightly increase. but 3rd ionization energy is drastically increase.

for C also 3rd ionization energy is drastically increases.

so these two elements are the same group.

becuase remaining all are not similar to this trend.