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formula

the symbols and subscripts of elements

subscript

written below

subscript

the number written after a symbol which tells the number of atoms of that element are in the compound

chemical formula

shows the elements in the compound and the ratio of atoms of those elements

noble gas

a nonreactive element that is in group 18 on the periodic table

chemically stable

describes an atom whose outer energy level is completely filled with electrons

noble gas

chemically stable

lose

possitive oxidation number

share

variable oxidation states

gain

negative oxidation number

chemical bond

force that holds atoms together in a compound

ions

atoms that have a charge

superscript

written above

superscript

the charge of an atom

ionic bond

possitive to negative/ metal to nonmetal

40-60m/s

speed of signals moving along the nerve cells

covalent bond

nonmetal to nonmetal/ polar and nonpolar

polar

possitive to negative/ nonmetal to nonmetal

nonpolar

negative to negative/ nonmetal to nonmetal

polar

having opposite ends

nonpolar

no oppostie charge

toxic

compounds that are poisonous

corrosive

Latin root- to tear up

flammable

compounds that burn easily

oxidation number

a possitive or negative number assigned to an element to show its combining ability in a compound

two

binary- bi

binary compound

a compound that is composed of two elements

ammonium

NH₄⁺¹
1+

acetate

C₂H₃O₂⁻
1-

chlorate

ClO₃⁻
1-

hydroxide

OH⁻
1-

nitrate

NO₃⁻
1-

carbonate

CO₃²⁻
2-

sulfate

SO₄ ²⁻
2-

phosphate

PO₄³⁻
3-

poly-

many

polyatomic

having many atoms

polyatomic ion

a group of atoms that has a positive or negative charge which is covalently bonded

hydrate

water

hydrate

compound that has water chemically attached to its ions and written into its chemical formula

anhydrous

without water

anhydrous

a compound in which all of the water has been removed

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