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Science Vocab

TermDefinition
Metals Found on the left side of the table Lose electrons to form positive ions Most are silver, shiny, solid, malleable, ductile, and good heat/electricity conductors
Metalloids Share properties of both nonmetals and metals
Nonmetals Found on the right side of the table Gain electrons to form negative ions
Atomic Number The number of protons in an atom.
Atomic Mass The mass of an atom
Atomic Radii Size of the atom
Metallic character How strong the characteristics of metal are present
Nonmetallic character How strong the characteristics of nonmetal are present
Electron Affinity A neutral atom's likelihood of gaining an electron
Ionization Energy Amount of energy an atom must absorb to discharge an electron
Alkali Metals The most active metals, they also don't exist as free metals
Hydrogen Unique element, most abundant in the universe
Halogens Most active nonmetals
Noble gases Relatively inactive Contain 8 Valence electrons
Popular Physical Science sets

 

 



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