Subatomic Particles

Electrons (e-)

Negtivley charged subatomic particle, make up majority volume but mass in negligible

Which subatomic particle mass is negligible?

electron

Valance electrons

Electrons in the outer shell of an atom

Protons (p+)

Positively shared subatomic particles.

Neutrons (n⁰)

Subatomic partial with no charge

Which subatomic particles make up the Nucleus?

protons and neutrons

Isotopes

Atoms of an element that contain the same numbers of protons but not neutrons.

What does X represent?

The symbol for an element

What does A represent?

Atomic mass (# Protons + # Neutrons)

What does Z represent?

Atomic Number (# Protons)

How many Neutrons does this Isotope have?

8 (20-12=8)

How many protons does this Isotope have?

12

What is the Atomic number of this isotope?

12

How many electrons does this isotope have.

10 (to have a 2+ charge it lost two electrons)

What is the mass number of this isotope?

20

Neutral Atom

# protons = # electrons

Ions

Atoms that either gained or lost electrons giving them a charge

An ion with a positive charge ____ electrons

lost

An ion with a negative charge ____ electrons

gained

Cations

A ion that lost giving it a positive charge

How do I remember that cations are positive?

They make me happy

Anions

An ion that gained electrons giving is a negative charge?

How do I remember that Anions are negative

“an” antagonist, antagonist are evil, evil=negative

Diatomic Molecules

Two atoms covalently bonded

What are the Diatomic Molecules?

H₂ N₂ F₂ O₂ I₂ Cl₂ Br₂ 

What is the acronym for the Diatomic Molecules?

Have No Fear Of Ice Cold Beer

Isometrics

Atoms with the same electron configuration