Think of two toys rubbing. They get hot and scratch.
A lubricant is like a smooth slippery liquid that sits between them so they don’t fight.
It is a fluid made of long soft molecules that slide over each other very easily.
• Giant ionic bonding happens when atoms that lost electrons (positively charged) join tightly with atoms that gained electrons (negatively charged).
• These opposite charges pull each other very strongly, like tiny magnets.
• They make a huge 3D crystal structure full of repeating ions.
• A covalent bond forms when two atoms overlap their electron clouds so the same electrons belong to both atoms at once.
• Each shared electron pair sits between the two nuclei, where the negative electrons are pulled by both positive nuclei, creating a deep electromagnetic glue.
• Atoms share because they want a full outer electron shell, which lowers their energy and makes them more stable.
• When orbitals (electron spaces) from each atom overlap, they create a new shared orbital that traps the electrons between them.
• The tighter the overlap, the stronger the bond—this is why triple bonds are stronger than double or single bonds.
