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Polyatomic Ion Flashcards: 30 Names, Formulas & Charges

Learn 30 commonly taught polyatomic ions with 60 two-way flashcards for name, formula, and charge recall.

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These polyatomic ion flashcards cover 30 commonly taught ions in 60 two-way cards. You’ll practice name → exact conventional formula with charge and formula with charge → canonical or common name. Each direction has its own card, so recognizing a formula does not stand in for recalling it.

Every formula is written as standalone LaTeX with conventional subscripts and a superscript charge. The fixed sequence interleaves both directions and ion families, keeps close variants at least three unrelated cards apart, and leaves longer-term spacing to the review scheduler.

Hydrogen carbonate (bicarbonate) and hydrogen sulfate (bisulfate) are the only paired names. The deck leaves out monatomic ions; borate, phosphite, and silicate, whose classroom species or formula conventions can vary; and compound naming, charge balancing, structures, oxidation states, solubility, colors, applications, reaction prediction, and general naming-rule theory.

ChEBI records were used to verify names, formulas, and charges, with PubChem used as an independent cross-check where its exact ion record was unambiguous. All prompts, answers, selection, order, metadata, and cover composition were created independently. No source or competitor prose, images, screenshots, selection order, trade dress, or logos were copied. Facts are not claimed as proprietary. The original wording, organization, metadata, and cover are dedicated under CC0 1.0 to the extent applicable rights exist.

इस डेक के कार्ड

  1. कार्ड 1

    प्रश्न

    What is the formula, including its charge, for chlorite?

    उत्तर

    ClO2−\mathrm{ClO}_{2}^{-}

  2. कार्ड 2

    प्रश्न

    HSO4−\mathrm{HSO}_{4}^{-}

    What is the name of this polyatomic ion?

    उत्तर

    Hydrogen sulfate (bisulfate)

  3. कार्ड 3

    प्रश्न

    What is the formula, including its charge, for dihydrogen phosphate?

    उत्तर

    H2PO4−\mathrm{H}_{2}\mathrm{PO}_{4}^{-}

  4. कार्ड 4

    प्रश्न

    SCN−\mathrm{SCN}^{-}

    What is the name of this polyatomic ion?

    उत्तर

    Thiocyanate

  5. कार्ड 5

    प्रश्न

    What is the formula, including its charge, for hypochlorite?

    उत्तर

    ClO−\mathrm{ClO}^{-}

  6. कार्ड 6

    प्रश्न

    S2O32−\mathrm{S}_{2}\mathrm{O}_{3}^{2-}

    What is the name of this polyatomic ion?

    उत्तर

    Thiosulfate

  7. कार्ड 7

    प्रश्न

    What is the formula, including its charge, for phosphate?

    उत्तर

    PO43−\mathrm{PO}_{4}^{3-}

  8. कार्ड 8

    प्रश्न

    OCN−\mathrm{OCN}^{-}

    What is the name of this polyatomic ion?

    उत्तर

    Cyanate

  9. कार्ड 9

    प्रश्न

    What is the formula, including its charge, for perchlorate?

    उत्तर

    ClO4−\mathrm{ClO}_{4}^{-}

  10. कार्ड 10

    प्रश्न

    SO32−\mathrm{SO}_{3}^{2-}

    What is the name of this polyatomic ion?

    उत्तर

    Sulfite

  11. कार्ड 11

    प्रश्न

    What is the formula, including its charge, for hydrogen phosphate?

    उत्तर

    HPO42−\mathrm{HPO}_{4}^{2-}

  12. कार्ड 12

    प्रश्न

    OH−\mathrm{OH}^{-}

    What is the name of this polyatomic ion?

    उत्तर

    Hydroxide

  13. कार्ड 13

    प्रश्न

    What is the formula, including its charge, for chlorate?

    उत्तर

    ClO3−\mathrm{ClO}_{3}^{-}

  14. कार्ड 14

    प्रश्न

    SO42−\mathrm{SO}_{4}^{2-}

    What is the name of this polyatomic ion?

    उत्तर

    Sulfate

  15. कार्ड 15

    प्रश्न

    What is the formula, including its charge, for arsenate?

    उत्तर

    AsO43−\mathrm{AsO}_{4}^{3-}

  16. कार्ड 16

    प्रश्न

    NO3−\mathrm{NO}_{3}^{-}

    What is the name of this polyatomic ion?

    उत्तर

    Nitrate

  17. कार्ड 17

    प्रश्न

    What is the formula, including its charge, for bromate?

    उत्तर

    BrO3−\mathrm{BrO}_{3}^{-}

  18. कार्ड 18

    प्रश्न

    Cr2O72−\mathrm{Cr}_{2}\mathrm{O}_{7}^{2-}

    What is the name of this polyatomic ion?

    उत्तर

    Dichromate

  19. कार्ड 19

    प्रश्न

    What is the formula, including its charge, for hydrogen carbonate (bicarbonate)?

    उत्तर

    HCO3−\mathrm{HCO}_{3}^{-}

  20. कार्ड 20

    प्रश्न

    C2H3O2−\mathrm{C}_{2}\mathrm{H}_{3}\mathrm{O}_{2}^{-}

    What is the name of this polyatomic ion?

    उत्तर

    Acetate

  21. कार्ड 21

    प्रश्न

    What is the formula, including its charge, for iodate?

    उत्तर

    IO3−\mathrm{IO}_{3}^{-}

  22. कार्ड 22

    प्रश्न

    CN−\mathrm{CN}^{-}

    What is the name of this polyatomic ion?

    उत्तर

    Cyanide

  23. कार्ड 23

    प्रश्न

    What is the formula, including its charge, for hydronium?

    उत्तर

    H3O+\mathrm{H}_{3}\mathrm{O}^{+}

  24. कार्ड 24

    प्रश्न

    O22−\mathrm{O}_{2}^{2-}

    What is the name of this polyatomic ion?

    उत्तर

    Peroxide

  25. कार्ड 25

    प्रश्न

    What is the formula, including its charge, for chromate?

    उत्तर

    CrO42−\mathrm{CrO}_{4}^{2-}

  26. कार्ड 26

    प्रश्न

    NO2−\mathrm{NO}_{2}^{-}

    What is the name of this polyatomic ion?

    उत्तर

    Nitrite

  27. कार्ड 27

    प्रश्न

    What is the formula, including its charge, for ammonium?

    उत्तर

    NH4+\mathrm{NH}_{4}^{+}

  28. कार्ड 28

    प्रश्न

    CO32−\mathrm{CO}_{3}^{2-}

    What is the name of this polyatomic ion?

    उत्तर

    Carbonate

  29. कार्ड 29

    प्रश्न

    What is the formula, including its charge, for oxalate?

    उत्तर

    C2O42−\mathrm{C}_{2}\mathrm{O}_{4}^{2-}

  30. कार्ड 30

    प्रश्न

    MnO4−\mathrm{MnO}_{4}^{-}

    What is the name of this polyatomic ion?

    उत्तर

    Permanganate

  31. कार्ड 31

    प्रश्न

    ClO2−\mathrm{ClO}_{2}^{-}

    What is the name of this polyatomic ion?

    उत्तर

    Chlorite

  32. कार्ड 32

    प्रश्न

    What is the formula, including its charge, for sulfate?

    उत्तर

    SO42−\mathrm{SO}_{4}^{2-}

  33. कार्ड 33

    प्रश्न

    H2PO4−\mathrm{H}_{2}\mathrm{PO}_{4}^{-}

    What is the name of this polyatomic ion?

    उत्तर

    Dihydrogen phosphate

  34. कार्ड 34

    प्रश्न

    What is the formula, including its charge, for thiocyanate?

    उत्तर

    SCN−\mathrm{SCN}^{-}

  35. कार्ड 35

    प्रश्न

    IO3−\mathrm{IO}_{3}^{-}

    What is the name of this polyatomic ion?

    उत्तर

    Iodate

  36. कार्ड 36

    प्रश्न

    What is the formula, including its charge, for hydrogen sulfate (bisulfate)?

    उत्तर

    HSO4−\mathrm{HSO}_{4}^{-}

  37. कार्ड 37

    प्रश्न

    PO43−\mathrm{PO}_{4}^{3-}

    What is the name of this polyatomic ion?

    उत्तर

    Phosphate

  38. कार्ड 38

    प्रश्न

    What is the formula, including its charge, for dichromate?

    उत्तर

    Cr2O72−\mathrm{Cr}_{2}\mathrm{O}_{7}^{2-}

  39. कार्ड 39

    प्रश्न

    BrO3−\mathrm{BrO}_{3}^{-}

    What is the name of this polyatomic ion?

    उत्तर

    Bromate

  40. कार्ड 40

    प्रश्न

    What is the formula, including its charge, for peroxide?

    उत्तर

    O22−\mathrm{O}_{2}^{2-}

  41. कार्ड 41

    प्रश्न

    What is the formula, including its charge, for sulfite?

    उत्तर

    SO32−\mathrm{SO}_{3}^{2-}

  42. कार्ड 42

    प्रश्न

    What is the formula, including its charge, for nitrite?

    उत्तर

    NO2−\mathrm{NO}_{2}^{-}

  43. कार्ड 43

    प्रश्न

    ClO−\mathrm{ClO}^{-}

    What is the name of this polyatomic ion?

    उत्तर

    Hypochlorite

  44. कार्ड 44

    प्रश्न

    HCO3−\mathrm{HCO}_{3}^{-}

    What is the name of this polyatomic ion?

    उत्तर

    Hydrogen carbonate (bicarbonate)

  45. कार्ड 45

    प्रश्न

    What is the formula, including its charge, for acetate?

    उत्तर

    C2H3O2−\mathrm{C}_{2}\mathrm{H}_{3}\mathrm{O}_{2}^{-}

  46. कार्ड 46

    प्रश्न

    What is the formula, including its charge, for cyanide?

    उत्तर

    CN−\mathrm{CN}^{-}

  47. कार्ड 47

    प्रश्न

    ClO4−\mathrm{ClO}_{4}^{-}

    What is the name of this polyatomic ion?

    उत्तर

    Perchlorate

  48. कार्ड 48

    प्रश्न

    HPO42−\mathrm{HPO}_{4}^{2-}

    What is the name of this polyatomic ion?

    उत्तर

    Hydrogen phosphate

  49. कार्ड 49

    प्रश्न

    NH4+\mathrm{NH}_{4}^{+}

    What is the name of this polyatomic ion?

    उत्तर

    Ammonium

  50. कार्ड 50

    प्रश्न

    CrO42−\mathrm{CrO}_{4}^{2-}

    What is the name of this polyatomic ion?

    उत्तर

    Chromate

  51. कार्ड 51

    प्रश्न

    What is the formula, including its charge, for permanganate?

    उत्तर

    MnO4−\mathrm{MnO}_{4}^{-}

  52. कार्ड 52

    प्रश्न

    ClO3−\mathrm{ClO}_{3}^{-}

    What is the name of this polyatomic ion?

    उत्तर

    Chlorate

  53. कार्ड 53

    प्रश्न

    H3O+\mathrm{H}_{3}\mathrm{O}^{+}

    What is the name of this polyatomic ion?

    उत्तर

    Hydronium

  54. कार्ड 54

    प्रश्न

    What is the formula, including its charge, for carbonate?

    उत्तर

    CO32−\mathrm{CO}_{3}^{2-}

  55. कार्ड 55

    प्रश्न

    What is the formula, including its charge, for nitrate?

    उत्तर

    NO3−\mathrm{NO}_{3}^{-}

  56. कार्ड 56

    प्रश्न

    What is the formula, including its charge, for hydroxide?

    उत्तर

    OH−\mathrm{OH}^{-}

  57. कार्ड 57

    प्रश्न

    What is the formula, including its charge, for cyanate?

    उत्तर

    OCN−\mathrm{OCN}^{-}

  58. कार्ड 58

    प्रश्न

    C2O42−\mathrm{C}_{2}\mathrm{O}_{4}^{2-}

    What is the name of this polyatomic ion?

    उत्तर

    Oxalate

  59. कार्ड 59

    प्रश्न

    What is the formula, including its charge, for thiosulfate?

    उत्तर

    S2O32−\mathrm{S}_{2}\mathrm{O}_{3}^{2-}

  60. कार्ड 60

    प्रश्न

    AsO43−\mathrm{AsO}_{4}^{3-}

    What is the name of this polyatomic ion?

    उत्तर

    Arsenate

Abstract clusters of connected spheres arranged in a balanced chemistry-inspired pattern on a deep blue background.

60 कार्ड

Polyatomic Ion Flashcards: 30 Names, Formulas & Charges

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