An atom in an excited state has an electron configuration of 2-7-2 explain in terms of subatomic particles why this excited atom is electrically neutral

I can said that this atom is in an excited state because the second level has 7 electrons in place of 8 electrons and may be one of the two electrons in the third level. I can't explain why this atom is electrically neutral without knowing the number of protons.

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they it depends on if one believes about radioactivity, they make a geiger counter beep but maybe it was going to beep anyway electronics do wierd things all the time or it was programmed to beep near certain metals.

cytokinesis is the splitting of a cell membrane to form 2 identical daughter cells. it's similar to mitosis as both cells have identical copies of dna and cytokinesis is a step in the mitotic cycle.