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Vocab Terms


The ease and speed with wich an element or a compound combines wih other elements or compounds Reactivity
The tempature at wich a substance changes from a solid to a liquid Melting Point
The measurement of how much mass of a substance changes from a liquid to a gas Density
The temperature at wich a substance changes from a liquid to a gas Boiling Point
The ability for a substance to ignite and burn Flammability
A quality of a substance that never changes and can be used to identify a substance Charecteristic Property
The Greek symbol used in expressing the acidity or alkaline of an element pH
The ability of a substance to alter its form but does not change into a new substance Physical Properties
The ability or ease of a substance to transmit heat and/or electricity Conductivity
The ability of a substance to change into a new substance or combine with a substance Chemical Properties
The average mass of one atom of an element. Mass is calculated by combining the mass of protons and neutrons Atomic Mass
A small, psitively charfed particle in the nucleus of an atom. Proton
The smallest particle of an atom Atom
The name given to particles that are smaller than the atom and make up the atom Subatomic
A term sometimes used instead of using atomic mass Atomic Weight
The center of an atom that contains protons and neutrons Nucleus
A small particle in the nucleus of the atom with no electrical charge Neutron
The number wich tells you how many protons and electrons are found in an atom Atomic Number
A tiny, negatively charged particle that moves around the nucleus of an ato Electron
A term that refers to the number and arrangement of electrons, neutrons, and protons in an atom Atomic Arrangement
An element that lacks the properties of metals. These elements can be found on the right hand side of the periodic table Nonmetal
One of the electrons fartheset away from the nucleus of the atom (in the last shell of the atom) these electons are involved in chemical reactions Valence Electron
A horizontal row of elements in the periodic table. Elements in this row move from least reactive on the left to the most reactive on the right Period
An element that has some properties or charecteristics of metals and nonmetals. This group of elements are on the staircase (zig zag line) found betwen the metals and nonmetals Metalloid
Shiny, hard, malleable and ductile elements. These elements are the most abudant of all Metal
Elements in the same vertical column of the periodic table Family
Elements in the same vertical column of the periodic table: just like the Family Group
A chart of all of the elements showing the repeating pattern of their properties Periodic Table
A substance that cannot be broken down into other substances by chemical or physical means Element
The rare Earth elements found at the bottom of the periodic table. Lanthanide/Actinide
Created by: Zac418