Chemistry Quiz: Ions and Their Symbols

Study Notes

Hydrogen (H+) is the simplest cation, crucial in acid-base reactions.
Sodium (Na+) is an essential electrolyte, vital for nerve function.
Lithium (Li+) is used in psychiatric medications and batteries.
Potassium (K+) maintains cellular function and muscle contractions.
Silver (Ag+) is known for its antimicrobial properties and use in jewelry.
Magnesium (Mg2+) is important for enzyme function and energy production.
Calcium (Ca2+) supports bone health and muscle function.
Strontium (Sr2+) is used in specialized glasses and fireworks.
Barium (Ba2+) is used in medical imaging as a contrast agent.
Lead (Pb2+) is used in batteries but poses health risks due to toxicity.
Zinc (Zn2+) plays a role in immune function and wound healing.
Aluminium (Al3+) is lightweight and used in packaging and aerospace applications.
Ammonium (NH4+) is a part of fertilizers and plays a role in nitrogen cycles.

Fluorine (F-) is highly reactive and forms various fluorides, including toothpaste.
Chlorine (Cl-) is commonly found in disinfectants and table salt.
Bromide (Br-) is used in photography and as a flame retardant.
Iodide (I-) is essential for thyroid hormone production.
Oxide (O2-) is a vital component of many compounds, especially metals.
Sulphide (S2-) is involved in biological processes and occurs in some minerals.
Hydroxide (OH-) is a key component of basic solutions.
Hydrogencarbonate (HCO3-) helps maintain pH balance in blood.
Hydrogensulfate (HSO4-) acts as an intermediate in various chemical reactions.
Nitrate (NO3-) is essential for plant nutrition and is a component of fertilizers.
Carbonate (CO3 2-) is important in geological formations and ocean chemistry.
Sulphate (SO4 2-) plays a role in biological processes and occurs in mineral deposits.
Dichromate (Cr2O7-) is used in dyeing and in some chemical reactions.
Phosphate (PO4 3-) is a key component of DNA, RNA, and cellular energy (ATP).
Chlorate (ClO-) is used in herbicides and as a bleaching agent.