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Concepts Of Physics MCQ Edition [Volume 2]
Exam
Concepts Of Physics MCQ Edition [Volume 2]
Subject
Physics
Chapter
The Nucleus

Concepts Of Physics MCQ Edition [Volume 2] · Physics · The Nucleus

In comparison to the ^ 12 C atom, the ^ 14 C atom possesses

In comparison to the ^{12}\text{C}atom,the14Catom, the ^{14}\text{C} atom possesses

Options

  1. Atwo extra neutrons and two extra electrons
  2. Btwo extra neutrons and no extra electron
  3. Ctwo extra protons but no extra electron
  4. Dtwo extra protons and two extra electrons

Correct answer

B. two extra neutrons and no extra electron

Step-by-step solution

Carbon has an atomic number Z=6Z = 6.

For the ^{12}\text{C}atom,thenumberofprotonsisatom, the number of protons is6,thenumberofelectronsis, the number of electrons is6,andthenumberofneutronsis, and the number of neutrons is12 - 6 = 6.<br><br>Forthe14C.<br><br>For the ^{14}\text{C} atom, the number of protons is 66, the number of electrons is 66, and the number of neutrons is 14−6=814 - 6 = 8.

Therefore, the ^{14}\text{C}atompossessestwoextraneutronsandnoextraelectroncomparedtothe12Catom possesses two extra neutrons and no extra electron compared to the ^{12}\text{C} atom.
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