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43 terms

Physical Science Unit 3 Chapter 11

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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
hexa
six
anhydrous
without water
anhydrous
a compound in which all of the water has been removed