science
Grade-9
Easy
Question
Which of the following is incorrect according to the isotope?
- Has a different mass number
- Has the same mass number
- Will have the same atomic number
- Hydrogen has 3 isotopes
Hint:
The mass number is not the same for all the isotopes, so the statement that says the isotopes have the same mass number is incorrect.
The correct answer is: Has the same mass number
- An isotope is one or two elements of a family that has the same atomic number and different mass number.
- All the isotopes will be having same atomic number.
- The number of neutrons will vary according to the mass of an element.
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