Chem U6- IONIC NAMING

Chemical Name

CATION + ANION

Anion (2nd element/last) recieves “-ide” ending (DOES NOT APPLY TO POLYAYOMIC IONS)

EX: CaCl2 → Calcium Chloride

Chemical Formula

WRITE symbol for Cation + Anion

Common Ions only, #’s NOT SYMBOLS

Re-write ion # on opposite element, NUMBERS ONLY!! (reduce if possible)

EX: Aluminum Fluoride → ALF3 (3 is from AL)

Subscript

Represents HOW MANY ATOMS of a CERTAIN ELEMENT in ONE MOLECULE of that substance

Chem name and formula

BOTH represent HOW MANY ATOMS OF EACH ELEMENT within a MOLECULE of a particular substance

Transition Elements

(3-12), All METALS wit (+) Ions

Elements which make MORE THAN ONE ion

Left Stair step on PT

Roman Numeral

For writing TRANSITION ELEMENT Names and finding formulas

IN NAME: Gives CHARGE OF CATION (-)

Transition Names

CATION- find charge, record as ROMAN NUMERAL

Anion (2nd element/last) recieves “-ide” ending (DOES NOT APPLY TO POLYAYOMIC IONS)

Compound names formula

[ # atoms x (#/carions USUALLY X) + [ # atoms (# Anions ) ] = 0

Where Cations - First element

Anions - Second element

Transition Formulas

CATION Symbol = ROMAN NUMERAL

Anion receives symbol

Re-write ion # on opposite element, NUMBERS ONLY!! (reduce if possible)

Polyatomic Ions

GROUPS of ATOMS that are COVALENTLY BONDED together which act as a SINGLE ION

when naming DO NOT change ending to “-ide”

• USE PT REFERANCE FOR “-ate” and “-ite” suffixes