Question

What are the symbols of the ions with the following number of protons and electrons?

12 protons, 10 electrons

26 protons, 23 electrons

Answer 1

• Symbol Representing an Atom.
• ^A_zX^c

Where X represents the symbol for the element;A represent the mass number i,e;(neutrons+proton). z represents the atomic number ( i,e the number of protons) ;C repesent the charge, if any

1) from questions ,

no of proton =atomic no=12

And no of electrons=10

So the symbol of the ion is Mg²⁺

2)from questions,

No of proton=atomic no=26

And no of electrons is 23

So the symbol of the ion is Fe³⁺