ASU ESQUEDA BIO 181 UNIT 1ADVANCED
ASSESSMENT WITH COMPLETE DETAILED
ACCURATE SOLUTION (GRADE A+)
molecular complementarity - answer ✔✔-if the charges are opposite and the shapes fit like a lock-and-
key, the molecular complementarity is higher
atomic number - answer ✔✔-number of protons in the nucleus of each atom of that element
mass number - answer ✔✔-the total number of protons and neutrons in an atom
carbon - answer ✔✔-"life's chemical backbone"
most abundant chemical elements - answer ✔✔-H, C, N, O
valence electrons - answer ✔✔-number of unpaired electrons, most important electrons of a chemical
change
isotopes - answer ✔✔-forms of an element with different numbers of neutrons and mass numbers
Radioisotopes - answer ✔✔-give off energy in the form of radiation from the nucleus
alpha radiation - answer ✔✔-positively charged
beta radiation - answer ✔✔-highly energetic electrons, negatively charged
, gamma radiation - answer ✔✔-highly energetic photons, short wavelength electromagnetic, neutral
why do atoms form compounds? - answer ✔✔-atoms are most stable when each electron orbital is
filled
non polar covalent bond - answer ✔✔-equal sharing of electrons, atoms have no charge
polar covalent bond - answer ✔✔-unequal sharing of electrons, atoms have a partial charge
ionic bond - answer ✔✔-transfer of electrons, atoms have full opposite charges
Electronegativity - answer ✔✔-chemical property that describes the tendency of an atom to attract
electrons towards itself
polar threshold electronegativity difference - answer ✔✔-0.4-0.5
ionic bond electronegativity difference - answer ✔✔-> 1.8
non polar electronegativity difference - answer ✔✔-0-0.4
polar electronegativity difference - answer ✔✔-0.5-1.7
hydrogen bonds - answer ✔✔-forms between two water molecules when the partial positive charge of a
hydrogen atom is attracted to the partial charge of an oxygen atom
Lewis Dot Structure - answer ✔✔-shows how valence electrons are arranged around atoms
polar nature of molecules - answer ✔✔-determined by number of polar bonds, the more polar bonds,
the more polar molecule
ASSESSMENT WITH COMPLETE DETAILED
ACCURATE SOLUTION (GRADE A+)
molecular complementarity - answer ✔✔-if the charges are opposite and the shapes fit like a lock-and-
key, the molecular complementarity is higher
atomic number - answer ✔✔-number of protons in the nucleus of each atom of that element
mass number - answer ✔✔-the total number of protons and neutrons in an atom
carbon - answer ✔✔-"life's chemical backbone"
most abundant chemical elements - answer ✔✔-H, C, N, O
valence electrons - answer ✔✔-number of unpaired electrons, most important electrons of a chemical
change
isotopes - answer ✔✔-forms of an element with different numbers of neutrons and mass numbers
Radioisotopes - answer ✔✔-give off energy in the form of radiation from the nucleus
alpha radiation - answer ✔✔-positively charged
beta radiation - answer ✔✔-highly energetic electrons, negatively charged
, gamma radiation - answer ✔✔-highly energetic photons, short wavelength electromagnetic, neutral
why do atoms form compounds? - answer ✔✔-atoms are most stable when each electron orbital is
filled
non polar covalent bond - answer ✔✔-equal sharing of electrons, atoms have no charge
polar covalent bond - answer ✔✔-unequal sharing of electrons, atoms have a partial charge
ionic bond - answer ✔✔-transfer of electrons, atoms have full opposite charges
Electronegativity - answer ✔✔-chemical property that describes the tendency of an atom to attract
electrons towards itself
polar threshold electronegativity difference - answer ✔✔-0.4-0.5
ionic bond electronegativity difference - answer ✔✔-> 1.8
non polar electronegativity difference - answer ✔✔-0-0.4
polar electronegativity difference - answer ✔✔-0.5-1.7
hydrogen bonds - answer ✔✔-forms between two water molecules when the partial positive charge of a
hydrogen atom is attracted to the partial charge of an oxygen atom
Lewis Dot Structure - answer ✔✔-shows how valence electrons are arranged around atoms
polar nature of molecules - answer ✔✔-determined by number of polar bonds, the more polar bonds,
the more polar molecule
