Vocabulary
octet rule
describes an atom's preference for eight electrons in their valence shell
What is the electron configuration for sodium?
1s22s22p63s1
K2S
PCl5
phosphorus pentachloride
nitric acid
Pauli exclusion principle
What is the electron configuration for arsenic?
1s22s22p63s23p64s23d104p3
What is the chemical formula for chlorate getting together with sodium?
NaClO3
(NH4)2S
ammonium sulfide
HCl
hydrochloric acid
Aufbau principle
fill in orbitals starting with the lowest energy levels
What is the electron configuration for Fe3+?
1s22s22p63s23p64s23d3
What is the chemical formula for aluminum getting together with sulfate?
Al2(SO4)3
CuCl2
copper (II) chloride
HClO4
perchloric acid
Hund's rule
when filling equal-energy levels, singly occupy orbitals before pairing
What is the electron configuration for Te written in noble gas shorthand?
What is the chemical formula for ammonium getting together with chlorine?
NH4Cl
H2O
dihydrogen monoxide
HNO2
nitrous acid
What is effective nuclear charge? What is the equation to calculate effective nuclear charge?
effective nuclear charge: an adjusted charge an electrons feels
Zeff = (# of protons)-(# of inner electrons)
What is the electron configuration for I- written in noble gas shorthand?
[Xe]
What is the formula for What is the chemical formula for calcium getting together with nitrate?
Ca(NO3)2
Fe(NO3)3
iron (III) nitrate
CH3COOH
acetic acid