Question

Gaseous atoms of which of the elements above are paramagnetic?

(A) Ca and As only
(B) Zn and As only
(C) Ca, V, and Co only
(D) V, Co, and As only
(E) V, Co, and Zn only

Answer 1

Gaseous atoms of the elements V, Co, and As are paramagnetic.

Step-by-step explanation:

Gaseous atoms of the elements V, Co, and As are paramagnetic. Paramagnetic substances are attracted to magnetic fields and have unpaired electrons. Many transition metal complexes have unpaired electrons and hence are paramagnetic. In this case, the elements V (vanadium), Co (cobalt), and As (arsenic) have unpaired electrons in their electron configurations, making them paramagnetic.