Question

What is the symbol for the ion with 19 protons and 18 electrons?

Answer 1

The ion with 19 protons and 18 electrons is a potassium cation represented by the symbol K+.

Step-by-step explanation:

The ion with 19 protons and 18 electrons is a cation of potassium (K), as potassium has an atomic number of 19. With one fewer electron than protons, it will have a +1 charge. Thus, the symbol for this ion is K+.

Answer 2

That symbol is:
K(+)

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