[填空题]
The mass spectrum of chlorine qp s/e9 8nrjh(a;jv ;ay0d b20uq;hhjgas is shown bel u0odgeqb ;m;9m,2f uo 0i5skuow:
1.Calculate the relative molecular mass of chlorine gas using the mass spectrum.
2.State the identity of the particle responsible for the peak at 35 m/z.
3.Calculate the relative atomic mass of chlorine using the mass spectrum.