Chemistry Visual Vocabulary

Abigail Hays


-The basic unit of matter

-an atom is the smallest particle of an element, but it still has the same properties of an element

-atoms are made of smaller particles called Protons, Electrons, and Neutrons, smaller electrons orbit the nucleus made of protons, and neutrons

-If i were to ask my friend Adam what he were made of, would he say atoms?

Atomic Number

-The number of Protons in the nucleus of an atom

-you can tell one element from another by its atomic number

-the symbol for an atomic number is Z

-in an element symbol the atomic number is in the lower left

-Miranda likes to name the elements by only using the Atomic Number it's a game she plays with Mike.


-A negative charged particle that moves around the nucleus

-the mass of an electron is less than 1/1,000th the mass of a proton

-Electrons bring you down, or at least tats what Savannah said.

Electron Dot Diagram

-A diagram that shows an element symbol surrounded by dots representing the valance electrons in the atom

-helium has two valance electrons

-The Electron Dot Diagram makes categorizing elements easier.


-A pure substance that can't be broken down by ordinary chemical means

-elements are made of one type of atom

-atoms of different elements are told apart by how many protons are in the nucleus

-Elements are in everything even the elephants at the zoo.

Energy Level

-The space where electrons orbit the nucleus

-If you know how many Energy Levels an element has you can find out what period it's in.


-An atom or molecule that has electrical charge because it gained or lost electrons

-an atom with more protons than electrons is a positive charged ion, also called cation
-an atom with more electrons than protons is a negative charged ion, also called an anion
-the electric charge is shown at the at the upper right if an element symbol

-Each elements has so many Ions, it's hard to keep track of them all.


-One of the many forms of the same element

-all isotopes of an element have the same number of protons, but have a different number of neutrons
-most isotopes are radioactive, most elements have one or two stable isotopes

-Like ions, Isotopes are different, but some are more dangerous than others.

Mass Number

-The number of neutrons plus protons in the nucleus of an atom

-the symbol fr mass number is A
-the mass number is in the upper left of the element symbol

-Scientist use the atomic number and the Mass Number to find out hoe many neutrons an element has.


-A particle with no charge in the nucleolus of an atom

-neutrons has slightly more more mass then protons
-the number is described by the neutron number N
-to find the neutron number subtract the atomic number from the mass number

-Neutrons are plain, they seam to have nothing inside of them they can't pick a personality, there just neutral.


-The positively charged dense center of an atom

-the nucleus contains protons, and neutrons

-Like the Nucleus of a cell the nucleus of an atom is in the middle, it also holds the information that makes the atom what it is.

Periodic Table

-A chart the organizes elements biased on some of there properties

-The Periodic table has so many different elements on it, it's hard to memorize only a few have been able to memorize the whole thing.


-A positively charged particle located in the nucleus of an atom

-protons have slightly less mas than neutrons
-the number of protons determines the element

-Protons are so positive, they are happy little suckers deciding what kind of element the atom is.


-Capable of releasing radiation

-radioactive atom spontaneously decay and emit particles and or light from the nucleolus, that is called radiation
- the energy released by radioactive elements can be harnessed to produce electricity in a nuclear power plant, this energy also can be used to create a nuclear bomb
-if radiation changes the number of protons in a atom the element changes

-Some ions are Radioactive they tend to explode when other particles.

Valence Elcetrons

-Electrons found the outside energy layer of an atom

-If you know how many Valence Electrons an element has you can find out what Group/Family it's in.

Chemical Reaction

- A process that involves changes in the structure and energy content of atoms, molecules, or ions

-Chemical Reactions can be dangerous, but they sure are you to watch.

Physical Change

- A type of change to a substance that can be easily reversed

-no new substances are formed

-A Physical Change normal edits the appearance pf an object.


- The compounds on the left side of a chemical equation they are what is present before the chemical reaction

-Reactants are the pieces to make the finished product.


- The compounds on the right side of a chemical equation they are what is there after the chemical reaction

-Products are made of the pieces called reactants, products are the fished point.

Conservation of Mass

- A rule in chemistry that states that no matter what chemical changes a substance goes though the mass of the object will always stay the same

-The Law Of Conservation Of Mass keeps the mass of a substance the same throughout a chemical reaction.

Balanced Cemical Equation

- A chemical equation where on both sides there is an equal amount of each element

-Balanced Chemical Equations made scientist's jobs a whole lot easier, they make peace between the elements.


- The process of a substance changing from a solid to a gas without passing through the liquid state

-Sublimation is extreme, its passes though a state in matter without a care in the world.


- The creation of a solid in a solution or inside another solid during a chemical reaction or by diffusion in a solid

-When a substance is Precipitated, comes into this world as a rock hard solid.


- A mixture between two or more substances that is hard to separate chemically

-Compounds like to stick together, almost nothing can separate them.


- A mixture of two or more substances that is easy to separate

-Mixtures aren't as tight, they can be shattered easily.


- When a substance is dissolved into another

-Solutions make two substances into one.


- The minor component in a solution, what is dissolved in the solvent

-The Solute likes to disappear, to combine with another thing.


-The major component in a solution, the solution the solute is dissolved in

-The Solvent likes to made things disappear, to make another substance combine with it.


- On the periodic table it is a column, also known as a family

-The number on top of the Group tells how many valance electrons is each element in that group.


- A row on the periodic table

-The number, on the side of the Period tells how many energy levels each element in that period has.

Electron Configuration

- The distribution of electrons of an atom or molecule

-The Electron Configuration has its own periodic table.

Dmitri Mendeleev

- Created the periodic table and the periodic law

-Dmitri Mandeleev made scientist job easier.