Chemical Bonds

Electronic configuration of Potassium? (19K)

• 2, 8, 1

• 2, 8, 8, 1

• 2, 8, 8, 2

• 2, 8, 9

Valence electrons of Nitrogen is, (7N)

• 1

• 2

• 3

• 0

The valency of Argon is, (18Ar)

• 1

• 2

• 3

• 0

The bond formed between a Metal and a Non-metal is an Ionic Bond.

• True

• False

The bond formed between a Non-metal and another Nonmetal is a Covalent bond.

• True

• False

An ionic bond is formed when electrons are lost or gained by the elements participating in the bonding.

• True

• False

Which of the following is a chemical change?

• Melting of ice

• Boiling of water

• Rusting of iron

• Dissolving sugar in water

In a chemical reaction, the substances that combine are called:

• Products

• Reactants

• Catalysts

• Solutions

The force of attraction between two oppositely charged ions is called:

• Covalent bond

• Metallic bond

• Ionic bond

• Hydrogen bond

Which of the following elements tends to form a covalent bond?

• Sodium (Na)

• Magnesium (Mg)

• Chlorine (Cl)

• Potassium (K)