Atomic Structure Question 453
Nitrogen atom has an atomic number of 7 and oxygen has an atomic number 8. The total number of electrons in a nitrate ion will be 23 [Pb. PMT 2000]
Options:
8
16
32
64
Show Answer
Answer:
Correct Answer: C
Solution:
Number of electrons in nitrogen = 7 and number of electrons in oxygen = 8 we know that formula of nitrate ion is $ NO_3^{-} $ we also know that number of electrons = (1 × Number of electrons in nitrogen) + (3 × number of electrons in oxygen) + 1 = (1 × 7) + (3 × 8) + 1 = 32.
BETA
