Question

In Thorium (z = 90 ; A= 234) the difference in between the neutron number and proton number (N-Z) is​

Answer 1

Answer:

Thorium is a weakly radioactive metallic chemical element with the symbol Th and atomic number 90. Thorium is silvery and tarnishes black when it is exposed to air, forming thorium dioxide; it is moderately hard, malleable, and has a high melting point. Thorium is an electropositive actinide whose chemistry is dominated by the +4 oxidation state; it is quite reactive and can ignite in air when finely divided.

Answer 2

Answer:

thorium is an element 90th element