Atomic structure Flashcards
what is an Atom
the smallest part of an element
what is an element
a substance made up of only one type of atom
what is a compound
two or more substances that are chemically combined together
what is a mixture
two or more substances that are not chemically combined together
what is a nucleus
the very small and dense central part of an atom that contains protons and neutrons
what is a proton
a subatomic particle that exists in the nucleus of an atom and has a positive charge
what is a neutron
a subatomic particle that exists in the nucleus of an atom and has a neutral charge
what is an electron
a subatomic particle that orbits the nucleus of an atom and has a negative charge
what is an isotope
when an element has atoms with the same number protons and electrons but different amounts of neutrons, so you have to find the average (considering the percentage amount of each).
