What are valence electrons? How many valence electrons does an atom/ion have? Wh

Question

What are valence electrons? How many valence electrons does an atom/ion have? What's an s, p, or d orbital? How is an ionic bond different from a covalent bond? In terms of bond strength? Why? Bond polarity What's a polar covalent bond? How do you indicate bond polarity? How would you indicate polarities of different magnitudes? What's the general trend for electronegativity? Given the electronegativity numbers, could you apply them? Can you use formal charge to predict the correct structure? What if there are two "correct" structures? How do Valence Bond Theory and MO theory handle resonance differently?

Explanation / Answer

1) Outermost shell of an atom is known as the valence shell and the electrons present in the valence shell is known as the valence electrons. No of valence electrons present in an atom is equal to its group number.

1A group elements has 1 valence electron

2A group elements has 2 valence electrons

3A group elements has 3 valence electrons

4A group elements has 4 valence electrons

5A group elements has 5 valence electrons

6A group elements has 6 valence electrons

7A group elements has 7 valence electrons

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

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