Problem: How many protons, neutrons and electrons are in 55Mn2+?

FREE Expert Solution

We’re being asked to determine the number of protons, neutrons, and electrons in a 55Mn2+ ion.


An element can be represented as:


You can determine the identity of the element using its atomic number:

Atomic number (Z): 

represents the identity of the element
reveals the number of protons
in a neutral element:

            # of protons = # of electrons

Mass number (A)

reveals the number of protons and neutrons

            mass number = # of protons + # of neutrons


Given:           55Mn2+


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Problem Details

How many protons, neutrons and electrons are in 55Mn2+?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Ions concept. You can view video lessons to learn Ions. Or if you need more Ions practice, you can also practice Ions practice problems.