Polyatomic Ions Part 1 Adam Janus Stanley Janus

Two off duty Chicago firefighters Philip Cappitelli and Richard Keyworth, make the connection

Richard Keyworth of Elk Grove Village, remembering with a 25 -year-old Newsweek magazine, helped

Tylenol is pulled off shelves • 160 poisoned Tylenol capsules were found. • "This

Cyanide • Cyanide is a polyatomic ion. A group of atoms with a charge.

Memorization Hints • There are only two positive polyatomic ions [ammonium & mercury(I)]. All

Homework • Worksheet: Ions (Due on 12/4/14). • Ions Quiz will be 12/9/14.

Slides: 24

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Polyatomic Ions Part 1

Adam Janus

Stanley Janus and his fiancé Theresa

A Nurse’s Hunch Helen Jensen

A nurse's hunch Helen Jensen

Mary Kellerman A a

Two off duty Chicago firefighters Philip Cappitelli and Richard Keyworth, make the connection

Richard Keyworth of Elk Grove Village, remembering with a 25 -year-old Newsweek magazine, helped link the deaths of those who died in 1982 from cyanide-laced Tylenol.

Public Response

Tylenol is pulled off shelves

Tylenol is pulled off shelves • 160 poisoned Tylenol capsules were found. • "This could have gone on for years without someone knowing about it. “ "Who knows how many could have died“, had the connection to Tylenol not been made so swiftly. • Unfortunately the connection was still not swift enough.

Mary Reiner

Mary Mc. Farland

Paula Prince

Changes Made

The case remains unsolved

Cyanide • Cyanide is a polyatomic ion. A group of atoms with a charge. CNˉ • Note that the charge on this ion is not considered an oxidation number since it is not a charge on single atom.

Polyatomic Ions

Memorization Hints • There are only two positive polyatomic ions [ammonium & mercury(I)]. All other polyatomic ions are negative.

Memorization Hints

Homework • Worksheet: Ions (Due on 12/4/14). • Ions Quiz will be 12/9/14.