NEET Shortcuts:#

Atomic Radii: Larger the atomic number, smaller the atomic radii (down a group).

• Smaller the charge of the nucleus (more electron shells), larger the atomic radii (down a group).

Ionization Energies:

• Larger the atomic number, lower the ionization energy (down a group).
• Smaller the size of the atom, higher the ionization energy (across a period).

Hydration Energies:

• Larger the charge of the ion, higher the hydration energy (up a group).
• Smaller the size of the ion, higher the hydration energy (across a period).

CBSE Board Exam Shortcuts:#

Properties of Group 2 Elements:

• All are non-metals.
• Silvery-white color.
• Relatively soft and low melting point.
• Good conductors of heat and electricity.
• React with oxygen to form basic oxides.
• React with water to form hydroxides.

Uses of Group 2 Elements:

• Beryllium: alloys, springs, electrical contacts.
• Magnesium: alloys, aircraft, cars.
• Calcium: food, supplements, construction.
• Strontium: fireworks, pyrotechnics.
• Barium: X-ray imaging, medical applications.