[填空题]
Element Y has 4 stable isotopes. The table below shows the relativ5cy io.c4 np )h3k)bkke abundance2*os2mlwm8sn fqws+j, e -mr- and2 nwmlj 2esfmq-*s8s ,w m-+or atomic masses of these isotopes.
Isotope 1, Percent abundance is 1.40%, Atomic mass is 203.97
Isotope 2, Percent abundance is 24.10%, Atomic mass is 205.97
Isotope 3, Percent abundance is 22.10%, Atomic mass is 206.98
Isotope 4, Percent abundance is 52.40%, Atomic mass is 207.98
1.Calculate the relative atomic mass of the element.
2.Identify the element.
3.The atom of the element can form an ion with a charge of 4+. Determine the number of electrons in the ion.
4.Determine the nuclear symbol of another corresponding ion of element Y given the numbers of subatomic particles: electrons = 80; neutrons = 122.
