Its 1.0*10^-7M its considered a concentration because hydrogen ion is exactly equal to hydroxide ions produced by dissociation of water
<h2>Answer: protons and neutrons.
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The atomic nuclei of almost all elements consist of protons and neutrons.
The nucleus of an atom has very small dimensions. However, it <u>occupies its central part and concentrates more than 99% of its total mass.
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It is in the nucleus that the protons (positive charge) and neutrons (neutral charge) are found.
Refraction is the bending of light<span> </span>
The letter that answers this question correctly is E .
