basics (elements, polyatomic ions)

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16 Terms

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ion

particle with a charge → can be positive (+) or negative (–)

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ammonium

NH4+

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carbonate

CO32-

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hydroxixe

OH-

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nitrate

NO3-

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nitrite

NO2-

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phosphate

PO43-

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sulfate

SO42-

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sulfite

SO32-

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elements with a +1 charge (4)

  1. hydrogen

  2. Lithium

  3. sodium (Na)

  4. potassium (K)

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elements with a 2+ charge (3)

  1. Magnesium

  2. Calcium

  3. SR

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elements with a +3 charge

  1. aluminum (Al)

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elements with a -3 charge (2)

  1. nitrogen (N)

  2. phosphorus (P)

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elements with a -2 charge (2)

  1. oxygen (O)

  2. sulphur (S)

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elements with a -1 charge (4)

  1. fluorine (F)

  2. chlorine (Cl)

  3. bromine (Br)

  4. iodine (I)

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the seven elements that form diatomic molecules under normal lab conditions

  1. hydrogen

  2. nitrogen

  3. oxygen

  4. fluorine

  5. chlorine

  6. bromine

  7. iodine