Element M reacts with fluorine to form an ionic compound with the formula M . The M-ion has 22 electrons. Element M is __________. 9) _______ A) Fe B) Al C) Sc D) Cr E) Mn I know it's E.) Mn, but why. It's ionic so it must be metal. F has a -1 charge, but Mn has a charge of +2 usually. I don't know.
9) Element M reacts with fluorine to form an ionic compound with the formula M . The M-ion has 22 electrons.
Element M is __________. 9) _______
A) Fe B) Al C) Sc D) Cr E) Mn
I know it's E.) Mn, but why.
It's ionic so it must be metal.
F has a -1 charge, but Mn has a charge of +2 usually.
I don't know.
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I hate that I always have to waste my limited quanitty of questions for follow ups for a decent explaination.
I don't understand.
It must be in a +3 state?
Why?
F has a -1 charge, that means it would have:
9p
10e due to it's 18.99 mass.
and since the charge is -1, that would imply 10e.
That means I need an element with +1 charge to balance, but also should have 12e.
Mn has a charge of +2 generally, but it can have +3.
I was given zero understanding of how it could be any element with a +1 charge that has those numbers of electrons.
I need help understanding this.
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