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Science Vocaulary 2

Proton Positively charged subatomic particle in the nucleus of an atom.
Kinetic Theory Explanation of the behavior of molecules in matter; states that all matter is made of constantly moving particles that collide without losing energy.
Group A family of elements arranged in a vertical column on the periodic table.
Period The horizontal rows of elements on the periodic table
Electron A negatively charged subatomic particle that orbis the nucleus of an atom.
Neutron A subatomic particle having zero charge, found in the nucleus of an atom
Valence Electron An electron in an outer shell of an atom that can participate in forming chemical bonds with other atoms.
Electron Cloud The area around the nucleus of an atom where its electrons are most likely found.
Nucleus The center region of an atom where protons and neutrons are located
Element A substance that cannot be broken down into a simplier substance by an ordinary physical or chemical process
Atomic Number Number of protons in an atom's nucleus.
Mass Number The sum of the numbers of protons and neutrons in an atom's nucleus
Created by: mentomint