The very strong attraction of iron filings for a magnet is best explained by?

Question

the very strong attraction of iron filings for a magnet is best explained by?

a. ionization energy

b. diamagnetism

c. electron affinity

d. ferromagnetism

e. paramagnetism

is it a? or am i wrong? please help..thanks

In the gas phase, the energy difference btween a cesium atom and its most stable ion is referred to as:

a. atomic energy

b. electron afinity

c. energy of vaporization

d. ionization energy

e. magnetic moment

would it be its ionization energy?

Answer 1

First one is d.  Iron is ferromagnetic and so is attracted to a magnet.

Second one is d.  You got that one.  Since cesium forms a +1 ion, the energy difference between the gas phase atom and the gas phase ion is the ionization energy of cesium.