OC_Lec 02.1_A

Chemical holds atoms as

• Molecules
• Crystal Lattice
• Nuclear Fusion
• Nuclear Fission

Electron transfer from one atom to another

• Ionic Bond
• Covalent Bond
• None of these

Electrons are shared between two atoms

• Ionic Bond
• Covalent Bond
• None of these

Compact Atom arrangement with high physical properties

• Ionic Bond
• Covalent Bond
• None of these

Looser arrangement with low physical properties

• Ionic Bond
• Covalent Bond
• None of these

True about Valence Bond Theory

• Covalent bond is formed
• from overlap of half-filled atomic orbitals
• of two atoms
• Ionic bond is formed
• From fully-filled atomic orbitals of three atoms

Electrons that fillied the orbital are from two different atoms

• Covalent Molecular Bond
• Coordinate Covalent Bond
• Ionic Bond
• None of these

Electrons that filled the orbital are from one atom only

• Covalent Molecular Bond
• Coordinate Covalent Bond
• Ionic Bond
• None of these

Covalent bond where there is a direct or head-on overlap / end-to-end overlap

• Sigma bond
• Pi Bond
• Kappa bond
• Theta bond

Sideways overlap or side-to-side overlap

• Sigma bond
• Pi Bond
• Kappa bond
• Theta bond