Question

indicate the type of particle represented by the formula.
cu(no3)2
co2
fe
br2
nh4^+
bao

Explanation:

• Fe (Iron): It is an element. In its elemental form, it consists of individual atoms. So, the particle type is an atom.
• NH₄⁺ (Ammonium ion): It is a polyatomic ion. It has a positive charge due to the loss of an electron. So, the particle type is an ion.

Answer:

Fe: atom
NH₄⁺: ion