Question

find the odd one out and give the reason for it. nitrogen Phosphorus iron calcium​

Answer 1

Answer:

iron is odd one .Iron (/ˈaɪərn/) is a chemical element with symbol Fe (from Latin: ferrum) and atomic number 26.

help u mate ☺

Answer 2

The odd one is iron or simply Fe.bcz it micro element and rest three are the N,P,Ca are the macro element.

i hope it will help u.