Two: lead and iodine.
There are three elements in PbI2: lead (Pb), iodine (I), and two iodine atoms bonded to the lead atom.
PbI2 has TWO(2) elements. They are ;- Pb ; Lead (Plumbum ; Latin) I ; Iodine . However, there are three (3) atoms in PbI2. Viz: - 1 x Pb(Lead) 2 x I (iodine) 1 + 2 = 3 The name of the sibstance is 'lead iodide'.
The chemical formula for lead II iodide is PbI2. It is a yellow crystalline compound with a high solubility in water.
This compound is lead iodide.
The compound formed when lead reacts with iodine is lead(II) iodide, with the chemical formula PbI2.
2 elements
PBI2, or lead(II) iodide, consists of one lead (Pb) atom and two iodine (I) atoms. Therefore, there are a total of three atoms in one formula unit of PBI2.
3
A compound forms when two or more different elements chemically bond together. Therefore, at least two elements must be present for a compound to form.
how many atoms are in this compound
Lead(II) iodide (PbI2) is typically a yellow colored solid.
Mg which stands for Magnesium is the element to begin with, not a compound.