The size of potassium atom and its ion and conclude which one is larger.
Answer to Problem 4TE
The potassium atom,
Explanation of Solution
The electrons of an atom are placed in shells outside the nucleus. The electrons are arranged according to the energy level and the last outer shell of an atom is called the valence shell of an atom. Thus the electrons associated in the valence shell are the valence electrons.
The potassium atom belongs to group 1 and period 4 thus has only one electron in the outermost shell that is the 3rd shell. To get higher stability, atoms either gain or lose the electrons to attain eight electrons in the outermost shell. Thus potassium atom,
Thus, the potassium atom,
Conclusion:
Thus, due to the presence of one more extra shell of electrons the potassium atom,
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