Determine the number of electrons in the electron configuration and figure out which has atom has the same electrons
When finding the identity of the element, you’ll have to identify the atomic number of that element. Recall that every single element in the periodic table has a corresponding atomic number.
The atomic number of an element is always equal to the number of protons of that element. And when the element is neutral (charge = 0), the number of protons is equal to the number of electrons.
Neutral element: Atomic number = # protons = # of electrons
What element has an electron configuration of [Kr] 5s24d105p2 :
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Based on our data, we think this problem is relevant for Professor MacFarland's class at CSU.