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Chapter 37: Q. 22 (page 1082)
Write the symbol for an atom or ion with:
a. five electrons, five protons, and six neutrons.
b. five electrons, six protons, and eight neutrons.
a. The atom.
b. The ion is.
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Consider the gold isotope.
a. How many electrons, protons, and neutrons are in a neutralatom?
b. The gold nucleus has a diameter of . What is the density of matter in a gold nucleus?
c. The density of lead is . How many times the density of lead is your answer to part b?
What temperature, in °C, is a blackbody whose emission spectrum peaks at (a) and (b)?
The current in a Crookes tube is . How many electrons strike the face of the glass tube each second?
An alpha particle (a bare helium nucleus with ) accelerates across a potential difference, starting from rest. What is the particle’s kinetic energy in when it reaches the negative electrode? This question requires no mathematics beyond what you can do in your head.
Suppose that in a hypothetical oil-drop experiment you measure the following values for the charges on the drops:. What is the largest value of the fundamental unit of charge that is consistent with your measurements?
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