Ionic bonding is formed in Ionic compounds due to electrostatic force between the oppositely charged ions.
In covalent bonds electrons are shared between the atoms. In case of ionic bond the bond is stronger as there is complete transfer of electrons from one ion to the other.
Since the ionic bonds are more difficult to break than the covalent bonds, ionic compounds have a higher melting point than covalent compounds.
Answer:
Caesium
down the group atomic radius increases and along period wise atomic radius decreases
Answer: Motion, providing a burst of power that can move a specific part of the device.
Explanation: Hope this helps