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An isotopes of phosphorus contains 19 neutrons construct the symbol for the isotopes .what the mass number and what’s the atomic number

An isotopes of phosphorus contains 19 neutrons construct the symbol for the isotopes .what the mass number and what’s the atomic number class=

Answer :

Given,

The number of the neutrons in the isotope, N=19

The atomic number of phosphorous is Z=15.

Thus the atomic mass number is the sum of the protons and the neutrons in the atom.

Thus the mass number of the phosphorous-19 is

[tex]A=Z+N[/tex]

That is,

[tex]\begin{gathered} A=15+19 \\ =34 \end{gathered}[/tex]

Thus the symbol of the phosphorus-19 is

[tex]^{34}_{15}P[/tex]

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