9) Which is the BEST physical description of an atom? A. mostly protons with neu

Question

9) Which is the BEST physical description of an atom? A. mostly protons with neutrons and electrons sticking to them B. mostly neutrons outside of a proton and electron nucleus C mostly electrons packed into a nucleus with neutrons rotating around protons D. protons, neutrons, and electrons slammed into a tiny nucleus E. potons and neutrons in a nucleus with electrons filling mostly empty space around it 10) Neutral solutions have a pH of A. 0 B. 7 C. 14 11) Which is true? A. pH of less than 7 is basic, pH of more than 7 is acidic B. pH of less than 7 is acidic, pH of more than 7 is basic 12) Vinegar, fruit juice, and cola are examples of A. strong acids B weak acids C. trong bases D weak bases

Explanation / Answer

Ans 9

Option E is the correct answer

Atom is comprised of a nucleus and electrons.

Nucleus is made of protons & neutrons.

Nucleus does not have electrons.

Electrons revolve around the nucleus in the empty space.

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