[填空题]
The atom of element X has a mass number of2 w2t0:8u.6h cyn3dto 2m -g9sbdu oyfgc ki:l 127 and has zr)ysy mvdctr7ye (. 6i 42/xa74 neutrons. The ion derived from X has .armx6 i7yc2r zdsv)y(e/4yt54 electrons.
1.Calculate the number of protons of element X.
2.State the nuclear symbol of the ion formed (refer to the periodic table).
3.An isotope of X has a mass number of 132. Determine the number of neutrons in its atom. neutrons
