Naturally occurring zirconium exists are five isotopes. axe with a mass of 89.905 u(51.45%); Zr with a mass of 90.906 u (11.22%)
; Zr with a mass of 91.905 u (17.15%); Zr with a mass of 93.906 u (17.38%) and Zr with a mass of 95.908 u (2.80%). Calculate the average mass of zirconium.
The non metals good conductivity any to conduct electric city any time because the metals when we keep into any switch board while we touch we will get shock but non metals not like that