Finding Data on Elements and Atomic Structure

Vocabulary flashcards covering element periodic table squares, subatomic particles, equations, and valence electrons.

Element Square Data

Each square of the periodic table includes an element's atomic number, chemical symbol, name, and atomic mass.

Atomic Number

The number of protons or electrons in an atom; shown at the top of an element's square on the periodic table.

Neutrons Calculation

Formula used to find the number of neutrons: $\text{Neutrons} = \text{Atomic mass (rounded!)} - \text{Atomic number}$.

Subatomic Particle Charges

Protons have a positive charge (+\), Neutrons have a neutral charge ($0$), and Electrons have a negative charge (-\).

Nucleus

 The central location in an atom where protons and neutrons are located.

Atomic Mass

The full mass value of an element including decimals; only rounded when used in equations like finding neutrons.

Valence Electrons

Electrons located in the outermost shell (ring) of an atom.

Chemical Symbol

The abbreviated letters used to represent an element on the periodic table, such as $\text{Fe}$ for Iron.

Oxygen (Slide Example)

As noted in the lecture, Oxygen has $10$ total electrons and $6$ valence electrons.