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Test Review

Test Review. A positive ion is known as a __________ CATION A bond between two nonmetals (or two anions) is known as a _____________ COVALENT BOND. The transfer of valence electrons is called a(n) _______________ IONIC BOND What type of bond is good a good conductor of electricity? IONIC

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Test Review

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  1. Test Review

  2. A positive ion is known as a __________ • CATION • A bond between two nonmetals (or two anions) is known as a _____________ • COVALENT BOND

  3. The transfer of valence electrons is called a(n) _______________ • IONIC BOND • What type of bond is good a good conductor of electricity? • IONIC • How do you determine the number of neutrons in the nucleus of an atom? • Atomic mass - #of protons = #of neutrons OR #of neutrons + #of protons = Atomic mass

  4. What does the atomic number stand for? • The number of protons and electrons in an atom of the element • Why do atoms bond? • To obtain a full outer valence electron shell (OCTET RULE) • A(n) _______ is an atom with a CHARGE • ION

  5. Lithium-7  write this in isotope notation • How many neutrons does lithium-7 have? • 7-3 = 5neutrons • Is lithium-7 an isotope? Why or why not? • No because this is how it appears on the periodic table. 5 neutrons.

  6. When naming binary ionic compounds, we first write the name of the ___________ and then the anion (nonmetal). • CATION (metal) • Balance : CoBr3+ CaSO4  CaBr2 + Co2(SO4)3 • 2CoBr3+ 3CaSO4 3CaBr2+ 1Co2(SO4)3 • Write the name for BaBr2 • Barium bromide

  7. Write the formula for the chemical compound: iron (II) arsenide • Fe3As2 • Write the name for N2O5 • Dinitrogenpentaoxide • Write the formula for tetraphosphoruspentasulfide • P4S5

  8. Who created the “plum pudding” model of the atom? • Thomson • What did the gold foil experiment conducted by Rutherford help him discover? • The nucleus of an atom • ________ discovered the orbit of electrons around the nucleus of an atom • Bohr

  9. Name all 10 prefixes used for naming covalent bonds • mono di tri tetra penta hexa hepta octa nona deca • The sharing of valance electrons is called a _________ • COVALENT BOND • An ion with a negative charge is called a(n) _________ • ANION

  10. Draw the lewis dot structures of sodium and chlorine, then show the transfer of valence electrons. What type of bond is this? • Ionic • What are the final charges of these ions? • Na +1 Cl -1

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