What is the atomic number of chromium and iron, respectively? Which of the following elements is paramagnetic with a spin of electron?
a. Atomic number of chromium: 24
Atomic number of iron: 26

b. Chromium is paramagnetic with a spin of electron.

c. Atomic number of chromium: 24
Atomic number of iron: 26

d. Iron is paramagnetic with a spin of electron.