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12. atoms — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics12. atoms1 Mark
MCQ
Given below are two statements:

Statement $I$: Atoms are electrically neutral as they contain equal number of positive and negative charges.

Statement $II$: Atoms of each element are stable and emit their characteristic spectrum.

In the light of the above statements, choose the most appropriate answer from the options given below.

  • A
     Both Statement $I$ and Statement $II$ are incorrect 
  • ✓
    Statement I is correct but Statement $II$ is incorrect 
  • C
    Statement $I$ is incorrect but Statement $II$ is correct 
  • D
    Both Statement I and Statement $II$ are correct
✓

Answer

Correct option: B.
Statement I is correct but Statement $II$ is incorrect 
b
Statement $I$ is true as atoms are electrically neutral because they contain equal number of positive and negative charges.

Statement $II$ is wrong as atom of most of the elements are stable and emit characteristic spectrum. But this statement is not true for every atom.

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