Ionization Energy
Why is ionization energy higher for helium than hydrogen?
Visual Thinking
Imagine electrons as planets and nucleus as the Sun. Where does this analogy fail?
Common Mistake Alert
Students confuse shells and orbitals. Can you differentiate?
Why Do Atoms Bond?
Why do atoms form chemical bonds?
Ionic vs Covalent
How is an ionic bond different from a covalent bond?
VSEPR Model
Predict the shape of methane (CH₄) using VSEPR theory.
Hybridization Basics
What is hybridization? Give an example.
Dipole Moment
Why is CO₂ non-polar but H₂O is polar?
Hydrogen Bonding
Why does water have an unusually high boiling point?
Resonance
What is resonance? Give an example.
Electronegativity Trend
Why does electronegativity increase across a period?
Real-Life Analogy
Compare covalent bonding with sharing a pizza.
Common Misconception
Does higher bond order always mean higher bond energy?
What is the mole concept and why is it important?
Many students know that 1 mole = 6.022×10236.022 × 10^{23}, but why is this number so important in chemistry?
Why do we use relative atomic mass instead of absolute mass?
Atoms are so tiny that their real masses are inconvenient to use. So how do chemists deal with this?
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