Atomic Models, Energy, and Orbitals

Question 1

Define: Wave-particle duality

Answer 1

The concept that light, as well as electrons and many other subatomic particles have the properties of both particles AND waves.

Question 2

Define: Aufbau Principle

Answer 2

Electrons fill orbitals starting with the lowest energy ones and then filling higher energy orbitals as needed

Question 3

Define: Valence electrons

Answer 3

An atom’s outermost electrons

Question 4

Define: Ion

Answer 4

An atom or group of atoms that develop an electrical charge by gaining or losing electrons

Question 5

Define: Ionic compound

Answer 5

Compound in which the elements that make it up gain net charges by gaining or losing electrons

Question 6

Define:Electrolysis

Answer 6

Breaking down a chemical using electricity

Question 7

Define: Electrolytes

Answer 7

Chemicals that form a conductive solution when dissolved

Question 8

The current leading model for an atom is the…

Answer 8

Quantum Mechanical Model.

Question 9

What is constructive interference?

Answer 9

When two waves interfere, or overlap, they are facing the same direction, so they combine together to make one bigger wave.

Question 10

What is destructive interference?

Answer 10

When two waves interfere, or overlap, they are facing in opposite directions, so their crests and troughs “cancel out” and destroy both waves.