Answer:
false
Explanation:
because elements never exist in nature as single isotopes they are always combined
A reaction in which oxidation numbers change is the answer! :D
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I believe <span>Na2SO3 is the solution to the problem.</span>
chlorobenzene
Carbon - 6
Hydrogen - 5
Chlorine - 1
that 1 chlorine replaces one of the hydrogens
thats why hydrogen number decreases by number of Cl atoms (that are substituting those H atoms)
No of protons=107+1=108
No. Of neutrons=158
Mass no. =166