7. The electrons involved in chemical reactions are a. Valence electrons b. Core

Question

7. The electrons involved in chemical reactions are a. Valence electrons b. Core electrons d. Excited-state electrons e. None of the above 8. The orbital diagram for the oxygen atom shows how many unpaired electro a. o b. 1 c. 2 d. 3 9. A paramagnetic substance a. Has unpaired electrons and is not attracted by a magnetic field b. Has unpaired electrons and is attracted by a magnetic field c Has only paired electrons and is not attracted by a magnetic field d. Has only paired electrons and is attracted by a magnetic field 10. An oxide that reacts only with bases is called a(an) a. Acidic oxide b. Basic oxide c. Amphoteric oxide d. Any metal oxide e. None of the above

Explanation / Answer

7) a - valence electrons these are the electrons which are in the outermost orbit and are involved in bond formation during chemical reaction.

8) c- 2

1s2 .2s2. 2p4

One paired and 2 unpaired in p orbital

9)b paramagnetic substances have unpaired electrons and are slightly attracted by magnetic field

10)a acidic oxides react with bases to forma salt and water.

Related Questions

Navigate

• Browse (All)
• Browse 7
• Subjects

---

---

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