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Atoms&Periodic Table

QuestionAnswer
Atom smallest component of an element having the chemical properties of the element, consisting of neutrons
Nucleus The positively charged mass within an atom., composed of neutrons and protons
Proton a positively charged subatomic particle that is found in the nucleus of an atom
Neutron A neutral (no charge) subatomic particle that is found in the nucleus of an atom
electron A negatively charged subatomic particle that is found outside the nucleus
electron cloud Area around the nucleus where an electron is liking to be found
atomic symbol a one or two-letter abbreviation for a chemical name
atomic number the number of protons in the nucleus of an atom determines chemical properties of an element
atomic mass/mass number the total number of protons and neutrons in the nucleus of an atom
average atomic mass weighted average of the mass of all the isotopes of a given element
Periodic table arrangement of known elements into rows and columns based on physical and chemical properties
Periodic group (family) vertical columns of elements on the periodic table, that have the same number of valence electrons
Periodic period Horizontal rows of elements on the periodic table, that have the same number of occupied electron shells
isotope versions of the same element that differ in the amount of neutrons in the nucleus
ions charged atom; Version of an element with unequal protons and electrons
Cation positively charged atom; has more protons than electrons
anion negatively charged atom; has more electrons than protons
Created by: Mal_dreisbach
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