Masters Day 2: Units 3,4,5

Unit Terminology

100

The science of balancing reactions

Stoicheometry

200

The definition of a neutron

A chargeless subatomic particle with a mass of 1 amu

300

Average of all isotopic masses of an element

Atomic Mass

400

The definition for a coefficient

The number in front of a compound or element within a reaction that shows the amount of said substance

500

4 forms of an ionic bond

1. Metal + Nonmental

2. Metal + Polyatomic ion

3. Nonmetal + Polyatomic ion

4. Polyatomic ion + Polyatomic ion

Off the Periodic Table

100

Atomic number of Be

4

200

Name for Nb

Niobium

300

Number of protons and electrons of Gallium

31p and 31e

400

Electron configuration for Barium

2-8-18-18-8-2

500

Number of neutrons of Zirconium

51 neutrons

Bonding & Naming

100

Type of bond formed between 2 polyatomic ions

Ionic

200

Type of bond where roman numerals are used

Ionic

300

All 10 covalent prefixes

Mono, Di, Tri, Tetra, Penta, Hexa, Hepta, Octa, Nona, Deca

400

The formula for Iron(II) Oxide

FeO

500

The name of P₂O₅

Diphosphorous Pentoxide

Moles & Stoicheometry

100

How to convert grams into moles

Divide by molar mass

200

The molar mass of CoF₂

~97g

300

The amount of moles of H₂O if you had a 90 gram sample

5 moles

400

In balancing equations you never adjust the ___________ number

Little (subscript)

500

Balance this reaction:

__H₂ + __O₂ --> __H_2O

2H₂ + 1O₂ --> 2H_2O

Atomic History

100

First ever atomic model

Cannon ball model

200

Rutherford's experiment

Gold foil experiment

300

The 2 things the gold foil experiment proved about an atom

1. Atoms are mostly empty space

2. There is a dense positive nucleus

400

The area of high probability of finding electrons according to modern atomic theory

Orbital

500

The modern model of an atom

Wave-mechanical model