Some Basic Concepts of Chemistry - Result Question 30
31. The total number of electrons in one molecule of carbon dioxide is
(1979, 1M)
(a) 22
(b) 44
(c) 66
(d) 88
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Answer:
Correct Answer: 31. (a)
Solution:
- In a neutral atom, atomic number represents the number of protons inside the nucleus and equal number of electrons around it. Therefore, the number of total electrons in molecule of $\mathrm{CO}_2$ $=$ electrons present in one carbon atom $+2 \times$ electrons present in one oxygen atom $=6+2 \times 8=22$.
BETA
