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The following table gives the number of electrons protons

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Question: The following table gives the number of electrons, protons, and neutrons in atoms or ions of four elements, identified only as A, B, C, and D. Write the isotopic symbol for each element.

Element

No. of protons

No. of electrons

No. of neutrons

Isotopic symbol

A

5

5

5

B

7

10

7

C

19

18

20

D

30

28

36

Reference no: EM13586313

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