Formulae and Equations
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25 Terms
What is an ion?
A charged atom or molecule
What is a cation?
A positively charged ion
What is an anion?
A negatively charged particle
What are 1+ ions formed by?
Group 1 elements (alkali metals)
Some D block elements (transition metals) such as Cu2+ and Ag+
Ammonia (NH3) forms Ammonium (NH4)
What are 2+ ions formed by?
Group 2 elements
Some D block elements, such as Cu2+, Fe2+, Zn2+
What are 3+ ions formed by?
Group 3 elements
Some d block elements, such as Fe3+
What are 1- ions formed by?
Group 7 elements
Some polyatomic ions such as nitrate
What are 2- ions formed by?
Group 6 elements
Some polyatomic ions such as sulphate
What are 3- ions formed by?
Group 5 elements
Some polyatomic ions such as phosphate
What are polyatomic ions?
ions composed of multiple elements
What is the formula for Manganate (Vll)?
MnO4-
What is the formula for Chlorate (l)?
ClO-
What is the formula for chlorate (V)?
ClO3-
What is the formula for Cyanide?
CN-
What is the formula for Peroxide
O2²-
What is the formula for sulfite?
SO3²-
What is the formula for Chromate (Vl)?
CrO4²-
What is the formula for Thiosulfate?
S2O3²-
What is the formula for Phosphate?
KO4³-