Question

1. choose the best answer.

when an atom gains or loses an electron, an ion forms in the process of _.
ionization
polarization
electron affinity
electron negativity

1. choose the best answer.

which explains why metallic bonds make metals good conductors of electricity?
intramolecular force
potential energy
delocalized electrons
electrostatic repulsion

Explanation:

• For question 2: Ionization is the process where an atom gains or loses an electron to form an ion. Polarization is about distortion of electron cloud. Electron affinity is the energy change when an atom gains an electron. Electron negativity is a measure of an atom's tendency to attract electrons in a chemical bond.
• For question 3: In metallic bonds, delocalized electrons can move freely throughout the metal lattice, allowing metals to conduct electricity. Intramolecular force is a general term for forces within molecules. Potential energy is related to position or state. Electrostatic repulsion is not the reason for electrical conductivity in metals.

Answer:

1. ionization
2. delocalized electrons