science 9 quarter 2 #3 Chemical Bonding.pptx

science 9 quarter 2 #3 Chemical Bonding

1. Chemical Bonding Ionic bonding Covalent bonding

2. Recall

3. Morning Work

4. Compounds Compounds are made up of elements that are chemically bonded by electrostatic forces. Compounds can be classified as ionic or covalent.

5. Ionic compound Is formed when a metal (cation) transfers its valence electron/s to a nonmetal (anion)

6. Covalent Compound Is formed when nonmetals share their valence electrons with another nonmetal.

7. Different Properties of Compound At normal atmospheric pressure and temperature, covalent compounds may exist in solid, liquid, or a gas, while ionic compounds exist only as crystalline solids.

8. Different Properties of Compound Ionic compounds generally have higher melting and boiling points while covalent compounds have lower melting and boiling points.

9. Different Properties of Compound Ionic compounds are hard and brittle, while covalent compounds are soft and flexible.

10. Different Properties of Compound Ionic compounds have high polarity, while covalent compounds have low polarity.

11. Different Properties of Compound Ionic compounds are usually soluble in water, while covalent compounds tend to be less soluble in water.

12. Different Properties of Compound Ionic compounds tend to be less flammable than covalent compounds.

13. Different Properties of Compound Ionic compounds conduct heat and electricity compared to covalent compounds

14. ACTVITY