Charges of different ions, formulas and diatomic atoms Flashcards
What does diatomic mean?
The elements go around in pairs
Which elements are diatomic? (7)
Oxygen, Hydrogen, Nitrogen, Chlorine, Iodine, Bromine, Fluorine
What is the formula for hydrochloric acid?
HCl
What is the formula for nitric acid?
HNO3
What is the formula for sulphuric acid?
H2SO4
What is the formula for ammonia?
NH4
What is the formula for methane?
CH4
What elements and compound have a positive charge of 1? (6)
hydrogen, sodium, potassium, lithium, silver, ammonium
What elements have a positive charge of 2? (7)
magnesium, calcium, zinc, iron, barium, copper, lead
What elements have a positive charge of 3?
aluminium, iron
What elements and compounds have a negative charge of 1? (8)
fluoride, chloride, bromide, iodide, nitrate, and
Hydride, hydroxide, hydrogen carbonate
What elements and compounds have a negative charge of 2? (3)
sulfide, sulfate, carbonate
What element has a negative charge of 3?
nitride
What is the charge of a hydrogen ion?
+1
What is the charge of a sodium ion?
+1
What is the charge of a lithium ion?
+1
What is the charge of a potassium ion?
+1
What is the charge of a silver ion?
+1
What is the charge of a ammonium ion?
+1
What is the charge of a magnesium ion?
+2
What is the charge of a calcium ion?
+2
What is the charge of a copper ion?
+2
What is the charge of a iron ion? (ask about this)
+2 or +3
What is the charge of a lead ion?
+2
What is the charge of a barium ion?
+2
What is the charge of an aluminium ion?
+3
What is the charge of fluoride?
-1
What is the charge of bromide?
-1
What is the charge of iodide?
-1
What is the charge of oxide?
-2
What is the charge of sulfide?
-2
What is the charge of nitride?
-3
What is the charge of hydride?
-1
What is the charge of chloride?
-1
What is the formula for hydrogencarbonate?
HCO₃⁻
What is the formula for sulfate?
SO₄²⁻
What is the formula for carbonate?
CO₃²⁻
What is the formula for ammonium?
NH₄⁺
What is the formula for hydroxide?
OH⁻
