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Chapter 4 and 5: Atoms and The Periodic Table

Horizontales
A unit or quantum of light.
An atom that has gained or lost one or more electrons and has a negative or positive charge.
An atom's central region, which is made up of protons and neutrons.
An electron that is found in the outermost shell of an atom and that determines the atom's chemical properties.
The lowest state of energy of an electron.
An atom that has the same number of protons but a different number of neutrons relative to other atoms of the same element.
An ion with a positive charge from removing an electron.
The sum of the numbers of protons and neutrons in the nucleus of an atom.
The number of protons in the nucleus of an atom.
An ion with a negative charge from gaining an electron.
A subatomic particle that has no charge and that is located in the nucleus of an atom.
Verticales
A vertical column of elements in the periodic table.
A horizontal row of elements in the periodic table.
A region in an atom where there is a high probability of finding electrons.
A subatomic particle that has a positive charge and that is located in the nucleus of an atom.
The number named for an Italian scientist to demonstrate the number of atoms or molecules in one mole of a substance.
When an electron gains energy by absorbing a particle of light.
A subatomic particle that has a negative charge.
The law that states that the repeating chemical and physical properties of elements change periodically with the atomic numbers of the elements.
The SI unit used for measuring large quantities of very small entities such as atoms, molecules, or other specified particles.