Atomic Concepts #2- HONORS

Ground State Electron Configuration

• When all electrons are in the lowest possible energy levels

• When electrons are in the highest energy levels

• When electrons are randomly distributed

• When electrons are in excited states

Bohr Model

• 1. 1. Neutrons and Protons are in the nucleus

  2. 2. Electrons are located in correct electron shells based on the electron configuration

• 1. 1. Electrons are located randomly around the nucleus

  2. 2. Neutrons are outside the nucleus

• 1. 1. Protons are negatively charged particles

  2. 2. Electrons orbit the nucleus in fixed paths

• 1. 1. Neutrons have a positive charge

  2. 2. Electrons are found in the nucleus

Sublevels

• s, p, d, f

• a, b, c, d

• 1s, 2s, 3s, 4s

• x, y, z, w

Quantum

• Electrons absorb a specific amount of energy when entering the excited state

• Electrons can exist in multiple states simultaneously

• Electrons are always in a fixed position

• Electrons do not interact with photons

Principle Energy Levels

• Electron Shells

• Energy Levels are fixed and cannot change

• PEL refers to the mass of an electron

• PEL indicates the color of the electron

What are the components of Expanded Electron Configuration?

• 1. Principle Energy Level, Type of Orbital, Number of Electrons in the Orbital

• 1. Atomic Number, Mass Number, Charge

• 1. Valence Electrons, Core Electrons, Ionization Energy

• 1. Electron Affinity, Electronegativity, Atomic Radius

Spectral Lines

Bright Line Spectrum

• When an electron moves from an excited state back to the ground state, energy is released in the form of light

• All elements have the same bright line spectrum

• Spectral lines are only visible in gases

• Bright line spectra are produced by solid objects

Nobel Gas Electron Configuration

• Condensed Electron Configuration

• Standard Electron Configuration

• Expanded Electron Configuration

• Basic Electron Configuration

Excited State Electron Configuration

• When 1 or more electrons has gained energy and moved to a higher principle energy level

• When electrons are in their lowest energy state

• When electrons are evenly distributed among all energy levels

• When electrons are removed from the atom entirely

Lewis Electron Dot Diagram

• Visualize the number of protons in an atom

• Visualize the number of valence electrons in an atom

• Determine the atomic mass of an element

• Identify the number of neutrons in an atom