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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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From the information in this chapter on the mass of the proton, the mass of the electron, and the sizes of the nucleus and the atom, calculate the densities of a hydrogen nucleus and a hydrogen atom.
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- An atom has a diameter of 2.50 Å and the nucleus of that atom has a diameter of 6.00 x 10-5 Å. Determine the fraction of the volume of the atom that is taken up by the nucleus. Assume the atom and the nucleus are a sphere. fraction of atomic volume: Calculate the density of a proton, given that the mass of a proton is 1.0073 amu and the diameter of a proton is 1.69 × 10-¹5 density: m. g/cm³arrow_forwardFill in the blanks. The positions of atoms on the periodic table of the ____ are determined by how many _____ are present in their nuclei; this also is called their atomic _____. An atom's nucleus is made up of protons, which have _____ charges and ___ that do not have a ____charge. The total of protons and neutrons in an atom defines its atomic ____ . Two atoms with the same number of protons but different numbers of neutrons in their nuclei are considered _____ . The nucleus is surrounded by electrons, which have charges. Electrons are not found randomly, but occur in discrete _____ that are grouped into "shells". The chemical properties of an atom, that is, the kinds of chemical reactions it has with other atoms or molecules, are determined by properties of its outermost set of orbitals, which is called its _____ shell. Two atoms will react with each other if the reaction leads to a more stable state; specifically so that their valence shells are ____ . The most common…arrow_forwardA new element has been discovered with two isotopes having masses of 84.63 amu and 90.63 amu. The average mass is 88.01 amu. Write the isotopic atomic mass that is the most abundant.arrow_forward
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