what are polyatomic ions? why do they have a charge ?

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what are polyatomic ions? why do they have a charge ?

2006-11-12 06:54:25 · 1 answers · asked by henry f 2 in Science & Mathematics ➔ Chemistry

1 answers

Polyatomic ions are a group of atoms that stick together during a reaction. They have a charge because they are part of a compound, they attach to another atom with an ionic bond.
SO4 has a -2 charge because S is +6 and O is -2 for each O
NH4 is +1 because N is -3 and each H is +1

2006-11-12 07:03:34 · answer #1 · answered by science teacher 7 · 0⤊ 0⤋