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Isotopes of the same element differ in their ______.

A.) mass number

B.) number of protons

C.) number of electrons

D.) atomic number

2 Answers

3 votes

Answer:

A) Mass Number

Step-by-step explanation:

An Isotope is the same Element, so no change in Protons or Electrons, but the difference between that Element and It's subsequent isotope is the number of Neutrons, thus changing the mass number. A popular Isotope is Uranium 235, Uranium's actual mass number is 238.

User Pila
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Answer:

A) mass number

Step-by-step explanation:

Isotopes of the same element differ in their mass number.

  • Mass number different.
  • Atomic number are same .
  • Isotopes are atoms of the same element which have different mass number.

Option a is correct answer

User GoonGamja
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