wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Find (a) the total number neutron and (b) the total mass of neutrons in 7 mg of 14C.
[Assume that mass of a neutron =1.675×1027kg]

Open in App
Solution

The number of neutrons is equal to the difference in the mass number and atomic number.
It is equal to 146=8.

(a) The number of neutrons present in 7 mg (7×103g) of C-14:
=7×10314×6.02×1023×8
=2.408×1021 neutrons

(b) Total mass of neutrons in 7 mg of C-14: ( mass of one neutron =1.675×1027kg
=2.4088×1021×1.675×1027

=4.035×106kg.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Electronic Configuration and Orbital Diagrams
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon