* Calcium (Ca) is a metal, and metals tend to form ionic bonds.
* Oxygen (O) and Hydrogen (H) are both nonmetals, and nonmetals usually form covalent bonds.
Ionic Bonds:
* Ca²⁺ and OH⁻: Calcium loses two electrons to form a +2 cation (Ca²⁺), and the hydroxide group (OH) gains one electron to form a -1 anion (OH⁻). These oppositely charged ions are held together by electrostatic attraction, forming an ionic bond.
Covalent Bonds:
* O-H: Within the hydroxide group (OH), the oxygen and hydrogen atoms share electrons, forming a covalent bond.
In summary:
* The bond between calcium and hydroxide is ionic.
* The bond between oxygen and hydrogen within the hydroxide group is covalent.
