Atomic Structure, Bonding, and Energy Changes in Chemistry

Flashcards covering key concepts of atomic structure, bonding types, and energy changes in chemistry.

Dalton's Atomic Theory

Atoms are solid spheres.

Thomson's Plum Pudding Model

A sphere of positive charge with electrons inside.

Rutherford's Nuclear Model

Atoms consist of a tiny positive nucleus with electrons orbiting around it.

Bohr's Atomic Model

Electrons exist in shells or energy levels.

Chadwick's Discovery

Neutrons were discovered.

Proton

Subatomic particle with a +1 charge and a mass of 1.

Neutron

Subatomic particle with 0 charge and a mass of 1.

Electron

Subatomic particle with a -1 charge and negligible mass.

Isotopes

Atoms of the same element that have the same number of protons but different numbers of neutrons.

Electron Configuration

Distribution of electrons in an atom's shells; follows the order of 2, 8, 8…