The most stable forms of the nonmetals in groups 4A, 5A, and 6A of the second pe

Question

The most stable forms of the nonmetals in groups 4A, 5A, and 6A of the second period are molecules with multiple bonds. Beginning with the third period, the most stable forms of the nonmetals of these groups are molecules without multiple bonds. Propose an explanation based on valence bond theory for this observation Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer Reset Help smaller d orbitals available to hybridize, so In period 2, the atoms are they electrons, multiple bonds must form and they larger accommodate as many atoms around the central atom. To complete the octet of have do not have atoms can surround the central atom and the d In the period 3 and higher atoms orbitals available to overlap, and there hybridize with the s and p orbitals. There are now orbitals can space for them to do so. The central atom, therefore cannot attain a stable configuration of eight or electrons without having to more multiple bond less is is no

Explanation / Answer

1. smaller

2. do not have d orbitals

3. cannot

4. more

5. can

6. more

7. larger

8. can

9. more

According to valence bond theory, the differentiation between 2nd period and third period elements is second period elements posses only S and P orbitals which present in second shell. Whereas the third period elements they posses 3d orbitals in their outermost shell so that they can accomodate more electrons in their outer most shell.

In valence bond theory orbitals participate in hybridization to produce hybrid orbitals. In second period elements only s, p orbitals undergo hybridization, whereas in the third period elements d orbitals also available to participate in hybridization. So that Nitrogen majorly forms trivalent compounds (2nd period element) forexample NCl3. Whereas phosphorous can pentavalent compounds majorly (3rd period element) for example PCl5.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.