Textbook ExpertVerified Tutor
30 Oct 2021
Given information
can be converted into 
.
has 
electrons.
has an ion which contains 
protons.
has an ion which contains 
protons.
Step-by-step explanation
Step 1.
loses two electrons to form .
When an atom is converted to an ion, the number of protons remain same.
The number of electrons present in ion is calculated by the formula:
Number of electrons = Atomic number of ion - charge of ion
Substitute the value of charge and atomic number of in the above equation,
Number of electrons = 
So, represents an ion with 
protons and 
electrons.
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