The three stable isotopes of neon: and have respective abundances of 90.51%, 0.27% and 9.22%. The atomic masses of the three isotopes are 19.99 u, 20.99 u and 21.99 u, respectively. Obtain the average atomic mass of neon.

Open in App

Solution

Atomic mass of , m₁= 19.99 u

Abundance of , η₁= 90.51%

Atomic mass of , m₂= 20.99 u

Abundance of , η₂= 0.27%

Atomic mass of , m₃= 21.99 u

Abundance of , η₃ = 9.22%

The average atomic mass of neon is given as:

Suggest Corrections

Similar questions

Q. The three stable isotopes of neon: 20 21 2210 10 Ne, Ne and Ne 10 haverespective abundances of 90.51%, 0.27% and 9.22%. The atomicmasses of the three isotopes are 19.99 u, 20.99 u and 21.99 u,respectively. Obtain the average atomic mass of neon.

Given that the percentage abundance of the isotope $_{10}^{20} N e$ , is 90% and that of the isotope $_{10}^{22} N e$ is 10%, calculate the average atomic mass of neon.

(a) Two stable isotopes of lithium

_{3}^{6} Li

and

_{3}^{7} Li

have respective abundances of 7.5% and 92.5%. These isotopes have masses 6.01512 u and 7.01600 u, respectively. Find the atomic mass of lithium.

(b) Boron has two stable isotopes,

_{5}^{10} B

and

_{5}^{11} B

. Their respective masses are 10.01294 u and 11.00931 u, and the atomic mass of boron is 10.811 u. Find the abundances of

_{5}^{10} B

and

_{5}^{11} B

1)carbon has,3 isotopes of atomic mass unit 12. 0 u and 13. 0 u and 14 u the relative abundance of these three isotopes are 98. 8 9 and 1. 10 and 2x10-10 respectively find out the average atomic mass of carbon?

Mg has three natural isotopes whose isotopic masses and relative abundances are respectively 23.98 (78.60%), 24.98(10.11%) and 25.98(11.29%). The atomic mass of Mg will be

Join BYJU'S Learning Program

The three stable isotopes of neon: and have respective abundances of 90.51%, 0.27% and 9.22%. The atomic masses of the three isotopes are 19.99 u, 20.99 u and 21.99 u, respectively. Obtain the average atomic mass of neon.

Atomic mass of , m1= 19.99 u Abundance of , η1 = 90.51% Atomic mass of , m2 = 20.99 u Abundance of , η2 = 0.27% Atomic mass of , m3 = 21.99 u Abundance of , η3 = 9.22% The average atomic mass of neon is given as:

Atomic mass of , m₁= 19.99 u

Abundance of , η₁= 90.51%

Atomic mass of , m₂= 20.99 u

Abundance of , η₂= 0.27%

Atomic mass of , m₃= 21.99 u

Abundance of , η₃ = 9.22%

The average atomic mass of neon is given as: