Question

write about isotopes
their characteristics

reason for fractional atomic masses

application of radioactive isotopes​

Answer 1

Answer:

Hey!! refer to the attachment

Answer 2

Answer:

Neon (10Ne) possesses three stable isotopes, 20Ne, 21Ne, and 22Ne. In addition, 17 radioactive isotopes have been discovered ranging from 15Ne to 34Ne, all short-lived. The longest-lived is 24Ne with a half-life of 3.38 minutes. All others are under a minute, most under a second. The least stable is 15Ne with a half-life of 7.7×10−22 s. See isotopes of carbon for notes about the measurement.

Main isotopes of neon

(10Ne)

Iso­tope Decay

abun­dance half-life (t1/2) mode pro­duct

20Ne 90.48% stable

21Ne 0.27% stable

22Ne 9.25% stable

Standard atomic weight Ar, standard(Ne)

20.1797(6)[1]