ECU CHEM 1120 Exam 2 Study Guide | Chemistry Review, Key Concepts & Practice Questions

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ECU CHEM 1120 Exam 2 Study Guide | Chemistry Review, Key Concepts & Practice Questions

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ECU CHEM 1120 Exam 2 Study Guide | Chemistry Review, Key Concepts &
Practice Questions

ionic bond - ANS ✔✔non-metal & metal positive charge with a negative charge

transfer of e-

covalent bond - ANS ✔✔2 non metals

sharing of e-

common charge of group 1 - ANS ✔✔+1

common charge of group 2 - ANS ✔✔+2

common charge of group 3 - ANS ✔✔+3

common charge of group 4 - ANS ✔✔+4

common charge of group 5 - ANS ✔✔-3

common charge of group 6 - ANS ✔✔-2

common charge of group 8 - ANS ✔✔-1

ammonium nitrate is - ANS ✔✔an ionic compound

molecular compound - ANS ✔✔negatively charged atoms put together

, anion - ANS ✔✔A negatively charged ion usually nonmetal

cation - ANS ✔✔A positively charged ion usually metal

ions - ANS ✔✔atoms that have gained or lost electrons

isotope - ANS ✔✔Atoms of the same element that have different numbers of neutrons

Nitrate ion - ANS ✔✔NO3 -1

Electronegativity - ANS ✔✔the ability of an atom to attract electrons

ranges 0-4.0

electronegativity trend - ANS ✔✔increases up and to the right

electron affinity - ANS ✔✔energy released to add 1 e-

high EA favor negative ion

electron affinity trend - ANS ✔✔increases to the right and up

ionization energy - ANS ✔✔The amount of energy required to remove an electron from an atom

lower energy favor positive ion

ionization energy trend - ANS ✔✔increases up and to the right

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