alyssaasnoww06 alyssaasnoww06 16-01-2021 Physics contestada Look at the atoms below a. Atom W: 9 protons and 9 neutrons b. Atom X: 8 protons and 9 neutrons c. Atom Y: 9 protons and 9 neutrons d. Atom Z: 9 protons and 10 neutrons Which ones below are isotopes of each other and why?