Atoms, Isotopes & Ions.
Terms in this set (19)
The smallest building block of matter.
A subatomic particle with no charge located in the nucleus of an atom.
A positively charged subatomic particle, located in the nucleus of an atom.
The center of an atom that is made up of protons and nutrons.
A negatively charged subatomic particle that orbits around the nucleus of an atom
The area in which Electrons orbit around the nucleus of an atom.
Pure substance made of a single type of atom.
A number that is unique to an element and can never be changed.
A symbol on the periodic table representing an element.
The weighted average of all known naturally occurring isotopes of a specific element.
The atomic mass rounded
Subtracting the mass number from protons
A diagram of an atom, created by Neils Bohr
different forms of an atom with the same number of protons but different numbers of neutrons, and mass number.
The atomic symbol of an element's isotope
An atom with a different number of electrons, making it an atom with a charge.
What is the difference between the atomic mass and the mass number?
The mass number is the sum of protons and neutrons, and the atomic mass is the mass of all isotopes of that element that have been averaged together.
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