Explanation

• Sodium has atomic number 11, so a neutral sodium atom contains 11 electrons.
• Its electronic configuration is 2, 8, 1.
• Sodium has one electron in its outermost shell and belongs to Group 1.

Last verified on 09-11-2026

Explanation

The M orbit, also known as the third electron shell.

• It can hold a maximum of 18 electrons.

Additional information:

The K orbit, also known as the first electron shell.

• It can hold a maximum of 2 electrons.

The L orbit, also known as the second electron shell.

• It can hold a maximum of 8 electrons.

Last verified on 01-11-2026

Explanation

• Vaporisation is the process in which a liquid changes into a gas.
• It occurs through evaporation or boiling.
• Evaporation can occur below the boiling point.
• Boiling occurs at the boiling point.

Last verified on 09-11-2026

Explanation

• Electroplating is the process of depositing a thin layer of one metal onto another using electric current.
• It improves appearance and can protect metals from corrosion.
• For example, chromium plating is used on vehicle parts.

Last verified on 09-11-2026

Explanation

• Heat naturally flows from a higher-temperature body to a lower-temperature body.
• This process continues until both bodies reach thermal equilibrium.
• Heat transfer can occur through conduction, convection, or radiation.

Last verified on 09-11-2026