First things first! Determine whether the bond will be ionic or covalent! n A nonmetal and a metal is ionic if they are both nonmetals it is covalent, hydrogen is not a metal. n To draw an ionic bond remove the electron(s) from the cation and add them to the anion. Show the. . charges on +each. . ion. n Na. . Cl: . . Na [: Cl: . . ]
For Polyatomic Ions… The polyatomic ion is a covalently bonded structure with an ionic bond to another substance. n NH 4 F n H. F H-N-H. H That goes to Fluoride It has an extra electron
For Polyatomic Ions… The polyatomic ion is a covalently bonded structure with an ionic bond to another substance. n NH 4 F n + H F H-N-H H That goes to Fluoride It has an extra electron
Polyatomic Ions we need to know
Ammonium What happens H H-N-H. H What it looks like when done [ H + H-N-H H ]
Hypochlorite What happens . - - ] - [ -O-Cl- - - O-Cl - - What it looks like when done
Hydroxide What happens . [ -O-H - - - O-H - What it looks like when done ] -
Nitrite What happens - O-N=O - [ -O-N=O - - - . - What it looks like when done ] -
Acetate What happens - -O= - [ H O-C-C-H H - - -O= H O-C-C-H H. What it looks like when done - ]
Draw the Lewis Dot Structure for Ca(Cl. O)2 n Na 2 S n NH 3 n NH 4 OH n Sc(NO 2)3 n Na. CH 3 COO n
Homework Give the Lewis dot structure for n Na. Cl. O n Ba(OH)2 n