Periodic Table
A pure substance that is only made up of one kind of atom
What is an element?
This type of bond is formed when two atoms share valence electrons
What is a covalent bond?
The Bohr Model shows all these of an element
What are electrons?
These particles in the outermost shell of an atom are represented by the dots in a Lewis dot structure
What are valence electrons?
These are yielded by a chemical reaction
What are the products?
These are rows on the periodic table that indicate how many shells, energy levels, an element has
What are periods?
This type of bond is formed between one metal and one non-metal atom
What is an ionic bond?
The amount of these positively charged particles are written in the center of a Bohr model
What are protons?
The number of positions that dots can occupy on a Lewis dot diagram
What is four?
These are the “ingredients” of a chemical reaction
What are the reactants?
Columns on a periodic table that denote how many valence electrons an element has, are called these
What are groups?
An atom that has acquired a positive or negative charge is called this
What is an ion?
The amount of these particles without an electric charge is written in the nucleus of a Bohr Model
What are neutrons?
The number of valence electrons required for a full outer shell in most elements
What is eight?
This number can change in a chemical equation
What is the coefficient?
This shows how many protons and electrons are in a neutral atom of an element
What is the atomic number?
This type of atom becomes “happy” after it gives away one or more valence electrons
What is a metal?
The energy levels of an atom, these are shown in a Bohr Model
What are shells?
The direction in which dots are placed on this type of diagram
What is counterclockwise?
To find the number of atoms of an element in a chemical equation, you multiply this by the coefficient
What is the subscript?
To find the number of neutrons in an element, subtract the atomic number from this
What is the atomic mass?
This group of elements are already low-energy
What are the Noble Gases?
This letter or series of letters that represents an element is not shown in a Bohr Model
What is an element symbol?
When representing an Ionic bond, these are placed around the element symbols
What are brackets?
Chemical equations must be balanced because of this law of physics
What is the Law of Conservation of Mass?