What is the chemical formula for potassium oxide

K2O

Explanation:

The compound potassium oxide is an ionic compound .The compound consist of 2 atom of potassium and 1 atom of oxygen. Ionic compound have both cations and anion. In an ionic compound their is a transfer of electron. One specie donates electron(s) while the other receives the electron(s). The cation loses electron(s) while the anion receives electron(s).

The compound can be represented as follows:

Potassium usually possess charge of +1 , K+  while oxygen possess charge of 2- , O2- .

K+ and O2-(The charge are superscript)

cross multiply the charge to get the chemical formula

K2O

From the chemical formula above one could understand that 2 atoms of potassium donates 1 electron each to the oxygen atom for both atoms(oxygen and potassium) to fulfill the octet rule.

chemists can use the electron cloud model to assign electrons to different atomic orbitals. atomic orbitals also explain the patterns in the periodic table

explanation:

answer; talc and gypsum;