jr166981758
Answered

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Someone help me please i need to finish this

Someone Help Me Please I Need To Finish This class=

Sagot :

Answer:

the last option is correct

Explanation:

see I won't explain all the points but will tell you the concept being used.

  • protons and neutrons are inside the nucleus in an atom while the electrons are outside the nucleus.

  • the mass number of an atom is equal to the sum of number of electrons and neutrons in an atom
  • atomic number is equal to the number of electrons which is equal to the number of protons in an atom
  • no. of electrons/ protons is always less than that of neutrons and they're almost equal( a large difference ain't obtained between the number of electrons and that of neutrons.

since, the rest of the options are violating the above rules they're incorrect

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