Hydrogen And Its Compounds Question 7
Question: The numbers of protons, electrons and neutrons in a molecule of heavy water are respectively:
Options:
A) 8, 10, 11
B) 10, 10, 10
C) 10, 11, 10
D) 11, 10, 10
Show Answer
Answer:
Correct Answer: B
Solution:
[b] Heavy water is $ D_2O $ hence number of electrons $ =2+8=10 $ number of protons = 10 Atomic mass of $ D_2O=4+16=20 $ hence number of neutron = Atomic mass $ - $ number of protons $ =20-10=10 $
BETA
