Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Nuclei

Question:

Mark the correct statement

Options:

Nuclei of different elements can have the same number of neutrons

Every element has only two stable isotopes

Only one isotope of each element is stable

All isotopes of every element are radioactive

Correct Answer:

Nuclei of different elements can have the same number of neutrons

Explanation:

Nuclei of different elements having the same mass number are called isotones e.g., 4Be9 and 5B10