Atomic And Periodic Table Vocabulary
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PRESENTATION OUTLINE
ATOMIC NUMBER
THE NUMBER OF PROTONS IN AN ATOM WHICH DETERMINES AN ELEMENTS CHEMICAL PROPERTIES AND IT’S PLACEMENT IN THE PERIODIC TABLE
ATOMIC MASS
THE MASS OF AM ATOM IN A CHEMICAL ELEMENT MEASURED IN ATOMIC MASS UNITS
MASS NUMBER
THE TOTAL NUMBER OF PROTONS AND NEUTRONS IN THE NUCLEUS
SUBATOMIC PARTICLE
A PARTICLE OR GROUP OF PARTICLES SMALL THAN AN ATOM
ELECTRON CLOUD
LOCATED AROUND THE NUCLEUS CONTAINING NEGATIVELY CHARGED ELECTRONS
ENERGY LEVELS
DIFFERENT LEVELS DETERMINED BY THEIR DISTANCE FROM THE NUCLEUS WHICH CONTAIN ELECTRONS
VALENCE ELECTRON
EXTRA ELECTRONS THAT DO NOT FORM A COMPLETE SHE’LL
CHEMICALLY STABLE
ELEMENTS THAT HAVE A COMPLETE OUTER SHELL , ALL NOBLE GASSED ARE CHEMICALLY STABLE
CHEMICALLY REACTIVE
AN ELEMENTS ABILITY TO REACT WITH ANOTHER BASED IN IT’S NUMBER OF VALENCE ELECTRONS
CONDUCTOR
SOMETHING THAT HAS THE ABILITY TO TRANSMIT HEAT AND ELECTRICITY
INSULATOR
SOMETHING THAT DOES NOT TRANSMIT HEAT OR ELECTRICITY
SEMICONDUCTOR
SOMETHING THAT CAN TRANSMIT HEAT AND ELECTRICITY IN SOME CONDITIONS BUT NOT ALL
