Answer:19 i think because if Potassium atoms have 19 electrons and 19 protons with one valence electron in the outer shell.
Answer:
Potassium. Potassium is the fourth element in the first column of the periodic table. It is classified as an alkali metal. Potassium atoms have 19 electrons and 19 protons with one valence electron in the outer shell.
Explanation:
molarity = no. of moles of solute/solution in litres
molarity =0.202/7.98
=0.025 M
Answer: true
