II: The element scandium Sc is a metal, what are many neutrons in the core 39Sc?...
II: The element scandium Sc is a metal, what are many neutrons
in the core 39Sc?
a. 21
b. 1
c. 23
d. 18
e. 45
Homework Answers
Atomic number of Sc is 21
So no. of protons = 21
Hence no. of neutrons in the core 39Sc = mass number - no. of protons = 39 - 21 = 18
Hence, (d) 18 neutrons in the core 39Sc.
Add Answer to:
II: The element scandium Sc is a metal, what are many neutrons
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