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Newnam - Atoms & PT

Atoms & Periodic table

QuestionAnswer
A very small particle that makes up most types of matter Atom
Central part of the atom; Contains protons and neutrons Nucleus
Area around the nucleus where electrons are most likely to be found Electron Cloud
Negatively charged; Located in the electron clouds around the nucleus Electron
electrons in the outermost energy level of an atom; determine the chemical properties of an element Valence Electrons
Positively charged; Located in the nucleus; Mass is 1 amu; Determine the identity of the element Proton
Neutral or no charge; Located in the nucleus; Mass is 1 amu Neutron
Atom that has an electric charge ( + or - ) due to loss or gain of electrons Ion
The number of protons in the nucleus of each atom of that element Atomic number
The total number protons and neutrons in the nucleus of each atom of that element Mass number
weighted average mass of an atom of an element Average Atomic Mass
luster,malleable,conductor,color,shape, mass are all Physical Properties
describe how a substance reacts (Example: flammability) Chemical Properties
chart to help organize elements; In order by atomic number Periodic Table
rows in the periodic table; all elements have the same number of energy levels or shells Period
columns in the periodic table; all elements have similar properties Group
shiny, good conductors,mostly solids, malleable, ductile, left & middle Metals
dull, poor conductors,mostly gasses,right side of periodic table NonMetals
have properties of metals and nonmetals; found between metals and nonmetals Metalloids
Created by: anewnam