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The Atom


Atom The basic particle fromantic which all elements are made; the smallest particle of an element that has the properties of that element.
Electron A tiny, negative charged particle that moves around the outside of the nucleus of an atom.
Nucleus The central core of an atom. Which contains protons and neutrons.
Proton Small positively charged particles that are found in the nucleus of an atom.
Energy Level A reaction of an atom in which electrons of the same energy are likely to be found.
Neutron A small particle in the nucleus of the atom, with no electrical charge
Atomic Number The number of protons in the nucleus of an Atom
Isotope An atom with the same number of protons and a different number of neurons from other atoms of the same element.
Mass Number The sum of protons and neutrons in the nucleus of an atom.
Atomic Mass The average mass of all the isotopes of an element
Periodic Table An arrangement of the elements showing the repeating pattern of their properties.
Chemical Symbol A one-or two- letter repsentattoo of an element
Period A horizontal row of elements in the periodic table
Group Elements in the same vertical column of the pperiodic table; also called family.
Created by: 15lynde