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Unit 4 vocabulary

TermDefinition
Atomic mass average mass of one atom of an element.
Periodic table a chart where all elements are organized into periods and groups according their properties.
Chemical symbol
Period a row of elements in the periodic table arranged by atomic number.
Group column of elements in the periodic table, in which elements have certain properties in common
Matter
Element
Compound matter made of two or more elements.
Atom
Electron negativley charged particle found outside the nucleus of an atom.
Nucleus
Proton positivley charged particle located in the nucleus of an atom.
Neutron
Energy levels the element if energy carried by an electron in an atom.
Isotope atoms of the same element with different numbers of neutrons in the nucleus, and this different atomic masses.
Mass number the sum of protons.
Atomic number number of protons in the nucleus of one atom of an element.
Metal elements, usually solid, with a shiny surface.
Melleable
Ductible
Conductivity transfer to heat from a warmer substance to a cooler substance
Created by: youngsurviver