wiz-icon
MyQuestionIcon
MyQuestionIcon
140
You visited us 140 times! Enjoying our articles? Unlock Full Access!
Question

The total number of neutrons present in one molecule of D2O16 is ______.


Open in App
Solution

D or deuterium (D12) is an isotope of hydrogen.

  • It is an isotope of hydrogen.
  • Atomic number is the number of protons of an atom. Here the subscript represents the atomic number and is given as 1. Hence it has 1 proton.
  • Mass number is the sum of the number of protons and neutrons of an atom. Here the superscript represents the mass number and is given as 2.
  • Mass number =number of protons+number of neutrons; number of neutrons=mass number -number of protons=(2-1)=1.

O-16 (O816)

  • it is an isotope of oxygen.
  • Here the subscript represents the atomic number and is given as 8. Hence it has 8 protons.
  • Here the superscript represents the mass number and is given as 16.
  • Mass number =number of protons+number of neutrons; number of neutrons=mass number -number of protons=(16-8)=8.

D2O16

  • Hence total number of neutrons= (2×1) + 8 =10
  • Therefore, the total number of neutrons present in one molecule of D2O16 is 10.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Mass Number
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon