Both of the atoms in a given element are electrically neutral, but only one of them possesses a stable electronic state.
Given: Two distinct atoms with the same mass and four protons each are the subject of the question. However, one is positive while the other is neutral in terms of charge.
Since they both have the same nucleus but different charges, it may be inferred that they are both atoms of the same element, however one of them is electrically neutral and the other has a stable electronic configuration.
In other words, although both atoms of the same element are electrically neutral, only one of them has a stable electronic state.
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