Chemistry back to school review

Subatomic Particles

100

The atomic number tells you the number of this type of subatomic particle in the atom

What is a Proton?

200

The mass number is equal to the sum of the number of these subatomic particles

What are protons and neutrons

300

This is the subatomic particle that has a negative charge

What is an electron

400

Oxygen has an atomic number of 8. This is its charge if it has 10 electrons

What is -2

500

An isotope of Bromine, atomic number 35, has a mass number of 76. It also has 36 electrons. This is the number of neutrons and the charge of this atom.

What are 41 and -1

Valence Electrons

100

These are the electrons on the outermost energy level of the atom

what are valence electrons

200

The number of valence electrons in Nitrogen

What is 5

300

The octet rule states that an atom wants to have this many electrons in its valence shell

What is 8 (or none)

400

This is the number of valence electrons in an atom with the electron configuration [Ne] 3S² 3P⁵

What is 7

500

The number of valence electrons in Bromine with a charge of -1

What is 8

Electron Configuration

100

The electron configuration of Carbon

What is 1S² 2S² 2P²

200

[Ne] 3S¹

What is the electron configuration of Sodium

300

[Ar] 4S² 3d¹⁰ 4P⁵

What is the electron configuration of Bromine?

400

The noble gas notation of the electron configuration for Iodine

What is [Kr] 5S² 4d¹⁰ 5P⁵

500

This is the electron configuration of Potassium with a charge of +1

1S² 2S² 2P⁶ 3S² 3P⁶

Ions

100

This is the rule that determines what charge a group A atom will tend to take as an ion

What is the octet rule (or rule of 8)

200

The number of electrons that Sulfur needs to gain to satisfy the octet rule

what is 2

300

The charge that a Sulfur ion will take on

-2

400

The charge that a Potassium ion will take on

+1

500

The charge that a Nitrogen ion will take on

What is -3

Ionic Compounds

100

An ionic compound forms between these two types of elements

What are metal and nonmetal

200

This is the formula for the ionic compound that forms between Mg and Cl

What is MgCl₂

300

This is the formula for the ionic compound that forms between Mg and O

What is MgO

400

This is the formula for the ionic compound that forms between Aluminum and Sulfur

What is Al₂S₃

500

This is the formula for the ionic compound that forms between a cation X with a charge of +5 and an anion Y with a charge of -2.

X₂Y₅