Lewis Structures Flashcards
What is a cation?
group on periodic table
What is an anion?
8 columns on periodic table (labeled 1-8 skipping transition metals)
What is the octet rule?
all elements want to be like noble gases so they can have 8 valence electrons to be stable
What does a + mean?
element lost an electron
What does a - mean?
element gained an electron
Wha is the balanced equation for Sulfur?
S + 2e- = S^-2
Sulfur wants 2 more electrons to have 8 valence electrons
What is the Lewis Dot?
symbolic representation of valence electrons
What is ionization?
gain/lose electrons
What is the duet rule?
seeking electron configuration of nearest noble gas (H wants He)
What are covalent molecules?
arrange atoms to fill valence shells
What is the 1st row?
2e- (duet rule)
What is the 2nd row?
8e- (octet rule)
What are the 2 types of electron pairs?
lone pair and bonding pair
What is a lone pair?
electron pair localized on atom
What is a bonding pair?
electron pairs shared between atom
