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Anatomy Test 1


Matter Anything that has mass and occupies space.
Energy Anything that moves or otherwise acts upon matter; two forms.
Kinetic Energy in motion.
Potential Energy at rest. This includes chemical energy which is stored in the bonds of molecules.
Element The simplest form of matter; cannot be broken down into two or more different substances; represented by chemical symbols.
Atom The smallest structural unit of an element that still retains its chemical and physical properties.
Molecule A substance composed of two or more atoms.
Compound A substance composed of two or more different elements.
Nucleus Dense core containing protons and neutrons.
Protons Positively charged particles.
Neutrons Neutral or non-charged particles.
Electrons Negatively charged particles.
Energy levels/Shells Space around the nucleus containing the electrons which travel in orbitals around the nucleus based on their energy levels.
Atomic-number Number of protons.
All atoms of the same element, but no two different elements Contain the same number of protons.
Usually the number of neutrons Equals the number of protons.
Atomic mass The collective number of protons and neutrons.
Isotopes Atoms of the same element with different atomic weights due to a differing number of neutrons.
There can only be up to two electrons in Each orbital
The first shell only has One orbital
The second and third orbitals only have Four orbitals
Created by: Hallierob1012