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polyatomic ion

a group of covalently bonded atoms that function as a whole and had either a surplus or deficit of electrons, giving it a pos/neg charge

noble gasses

p-block elements of groups 18 on the periodic table

octet

The eight electrons in s and p sublevels, which complete to outer shell of an atom & make the element very stable & chemically nonreactiive

electron affinity

The amount of energy released when a neutral atom gains an electron to become an anon

ionization energy

The energy required to remove an electron from a neutral atom or ion

conductivity

A metallic property; the ability of a substance to conduct heat or electricity

monatomic ion

a positive or negantive ion consisting of only one ion

Lattice energy

/the energy released when one mole of an ionic compound is formed

Electronegativity

The amount of the ability of an atom of one element to attract electrons from an atom of one element to form a compound

alkaline-earth metals

s-block elements in group 2 of the periodic table

actinides

radioactive f-block elements with atomic numbers 90 through 103

tetrahedtral

a molecular geometric model in which the central atom is surrounded by 4 atoms that form the vertices of a geometric figure with a triangula

trigonal planar

A molecular geometric model in which a central atom is surrounded by 3 atoms that form the vertices of an equilateral triangle; in 1 plane

London dispersion forces

Intermolecular forces created by temporary dipoles that result from the movement of electrons in the atoms within molocules

ductility

Is a metallic property; the ability of a substance to be drawn, pulled, stretched or extruded into wire

metalloids

p-block elements that are not malleable as metals, not as brittle as nonmetals, and will conduct electricity under certain conditions

luster

Is a metallic property; the ability to shine by reflecting light

ionic radius

The measure of the size of an ion

malleability

is a metallic property; the ability of a substance to be shaped, hammered, or beaten into thin sheets

bond energy

is the energy released to break a chemical bond and form neutral atoms

formula unit

The simplest chemical unit of an ionic compound

alkali metals

s-block elements in group 1 of the periodic table

molecular geometry

The three-dimensional arrangement of the atoms within a molecule

molecule

A group of atoms with a neutral charge that are held together by covalent bonds

halogens

p-block elements in group 17 of the periodic table

transition elements

d-block elements in groups 3 through 12 of the periodic table

lanthanides

are metallic f-block elements with numbers 58 through 71





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