Chapter 5- Electrons in Atoms

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Chapter 5.1-5.2 stuff!

True

True or False: Electrons must have a certain minimum amount of energy called a quantum in order to move from energy level to the next higher energy level?

Quantum

The amount of energy required to move an electron from its present energy level to the next higher one

Atomic Orbitals

The regions around the nucleus within which the electrons have the highest probability of being found

Energy Level

A region in space around the nucleus of an atom where an electron is likely to be moving

Quantum Mechanical

The modern description of the behavior of electrons in atoms

3

4p Sublevel: How many orbitals are in this sublevel?

5

3d Sublevel: How many orbitals are in this sublevel?

7

4f Sublevel: How many orbitals are in this sublevel?

Electron Configuration

The most stable arrangement of electrons around the nucleus of an atom

Aufbau Principle

Electrons enter orbitals of lowest energy first

Hund's Rule

When electrons occupy orbitals of equal energy, one electron enters each orbital until all the orbitals contain one electron with parallet spins.

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