Combined ionic metallic and covalent compounds
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Combined Ionic, Metallic and Covalent Compounds. Everything together. Properties of Ionic Compounds. Electrons are transferred (Made of Ions) Metal and a Nonmetal present (except NH 4 + may be present) High Melting Points High Boiling Points Normally Solids at Room Temperature

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Combined Ionic, Metallic and Covalent Compounds

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Combined ionic metallic and covalent compounds

Combined Ionic, Metallic and Covalent Compounds

Everything together


Properties of ionic compounds

Properties of Ionic Compounds

  • Electrons are transferred (Made of Ions)

  • Metal and a Nonmetal present (except NH4+ may be present)

  • High Melting Points

  • High Boiling Points

  • Normally Solids at Room Temperature

  • Conduct electricity when liquid or dissolved

  • Normally dissolve in Water


Properties of metallic compounds

Properties of Metallic Compounds

  • WILL NOT dissolve in water

  • Will conduct electricity when solid

  • Malleable and Ductile

  • Most Solids at well above room temperature

  • High Melting and Boiling Points

  • Made of Positive Ions and delocalized electrons


Properties of covalent compounds

Properties of Covalent Compounds

  • Electrons are shared (no ions)

  • Only Nonmetals present (NH4+ will be ionic)

  • Low Melting Points

  • Low Boiling Points

  • Normally Gases and Liquids or solids at Room Temp

  • Don’t conduct electricity

  • Normally DON’T dissolve in water


Molecules and compounds

Molecules and Compounds

  • MOLECULE: 2 or more atoms COVALENTLY Bonded. (Maybe the same element)

  • COMPOUND: 2 or more DIFFERENT atoms combined

  • MOLECULAR COMPOUND (Both): 2 or more DIFFERENT atoms COVALENTLY bonded.


Ionic compounds

IONIC COMPOUNDS

  • A CATION combined with an ANION to form a neutral compound (formula unit)

    • NaCl, CuF2, Ca(NO3)2, (NH4)SO4

  • Normally has a metal and a nonmetal or one or more Polyatomic Ions.

  • Electrons are transferred and opposite charges bring the ions together.


Covalent compounds

COVALENT COMPOUNDS

  • NO IONS are present

    • Except Polyatomic Ions themselves are covalent

  • Made up of NONMETALS only

  • Electrons are shared to complete Octets (8 electrons per atom) except H which gets 2 electrons


Naming ionic compounds

NAMING IONIC COMPOUNDS

  • Name the Cation first

    • Groups 1, 2, Ag, Cd, Zn, Al and Ammonium get NO ROMAN NUMERIAL

    • All other Metals get a Roman Numerial which is the CHARGE

  • Name the Anion

    • Negative elements end in –ide

    • Polyatomics get their ate or ite


Naming covalent compounds

NAMING COVALENT COMPOUNDS

  • Use Prefixes to state the number of each type of element present

  • DON’T use mon on the first element

  • LAST name ends in ide


Terms

TERMS

  • ION: An atom or group of atoms that lost or gained electrons and has a charge

  • ANION: A negatively charged atom or group of atoms. Has gained one or more electrons

  • CATION: A positively charged atom or group of atoms. Has lost one or more electrons


More terms

MORE TERMS

  • OCTET RULE: All atoms need 8 valence electrons, Except H, He, Li, Be – 2 only

  • CHEMICAL FORMULA: A representation of a substance using symbols for its constituent elements

  • FORMULA UNIT: The smallest repeating unit of a substance. The molecule for nonionic substances. Also called the Empirical formula


Even more terms

EVEN MORE TERMS

  • IONIC BOND: A chemical link between two atoms caused by the electrostatic force between oppositely-charged ions in an ionic compound.

  • COVALENT BOND: a chemical link between two atoms in which electrons are shared between them.

  • POLYATOMIC ION: Two or more nonmetals combined together with a charge (YOU MUST KNOW THE LIST)


Again even more

AGAIN EVEN MORE

  • VALENCE ELECTRONS: an electron that is the most likely to be involved in a chemical reaction. They are typically the highest energy s and p electrons.

  • COMPOUNDS: 2 or more DIFFERENT atoms combined

  • MOLECULE: 2 or more atoms COVALENTLY Bonded

  • MONOATOMIC ION: An ion made up of only one type of element.


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