Chemical Bonds

Question 1

Ionic Bond

Answer 1

One atom gives an electron,Another takes it.

Creates charged particles.
E.g, Na+ + Cl=NaCl (table salt)

Question 2

Covalent bonds

Answer 2

Atoms share electrons.
Strong and stable
Found in most organic molecules
E.g H20-oxygen shares electrons with hydrogen.

Question 4

Hydrogen Bonds

Answer 4

Weak bonds between polar molecules.
Important in water,DNA structure and protein shape.
E.g holds water molecules together.