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# Tutor profile: Stephen R.

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Stephen R.
Resident Physician/Musician
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## Questions

### Subject:MCAT

TutorMe
Question:

Which element is the most electronegative and why?

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Stephen R.

Fluorine. Electronegativity increases from left to right in a row as the outermost electron ring approaches completion. The closer to completion, the more attractive it is to another electron. Once complete (the far right noble gas column), they are stable and no longer attactive to additional electrons. So that gets us to the secondmost column from the right. Electronegativity also increases from bottom to top of a given column because it is inversely related to atomic radius. The closer to the positively charged nucleus the outermost electron ring is, the stronger it is held and the stronger it can grab that last electron it's missing. So all the way to the right (minus the noble gas column) and all the way up brings us to fluorine.

### Subject:Writing

TutorMe
Question:

How do I write a great conclusion?

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Stephen R.

### Subject:Music Theory

TutorMe
Question:

What do the two numbers in a time signature mean?

Inactive
Stephen R.

The bottom number tells you what kind of note "gets the beat" in a measure (the area between two consecutive vertical bar lines). If you were to tap your foot to the music, the bottom number is the kind of note you would typically tap. The most common bottom number is 4 so a 1/4, or quarter, note would get a beat if you saw a 4 on the bottom. If you see a 2 on the bottom, a 1/2, or half, note is what you would tap your foot to, and an 8 on bottom means you tap your foot in 1/8, or eighth, notes. Once you've got that, the top number just tells you how many of that note, or how many foot taps, happen in a single measure. 3/4 is 3 quarter notes per measure, 7/8 is 7 eighth notes, and so on.

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