**A. Complete the table below:***Note that some of the elements in the table are isotopes. Circle the symbols of the isotopic ones.*| Element Name | Symbol | Atomic Number | Mass Number | Number of Protons | Number of Neutrons | Number of Electrons ||---------------|--------|---------------|-------------|-------------------|--------------------|---------------------|| Aluminum | | 27 | 40 | 13 | 42 | || | Ar | 18 | 40 | | 22 | || | | 33 | 56 | 26 | 30 | 51 || | Sb | | | | | 92 || Uranium-235 | | | 193 | 79 | | || | Sc | | 17 | | | 18 || | | 6 | 13 | | | || | Si | 11 | 24 | 31 | 37 | || | | | 225 | 89 | 102 | 70 || | Mo | | 206 | | 53 | || | 81 | | | | | || | No | 100 | | | | || Unnilhexium | | | 261 | 106 | 159 | | **Explanation:**- The table is structured to show various properties of elements, including their symbols, atomic numbers, mass numbers, and the counts of protons, neutrons, and electrons.- Isotopes are noted by variations in the mass number, even when the atomic number remains constant.- For educational purposes, users are instructed to circle isotopic symbols, emphasizing understanding of isotopes within the table.

In neutral atom, Atomic number = number of protons = number of electrons Mass number = atomic number + number of neutrons number of neutrons = Mass number - atomic numberElement name Symbol Atomic number Mass number Number of protons Number of neutrons Number of electrons Aluminum Al 13 27 13 14 13 Argon Ar 18 40 18 22 18 Arsenic As 33 75 33 42 33 Iron Fe 26 56 26 30 26 Antimony Sb 51 122 51 71 51 Element name Symbol Atomic number Mass number Number of protons Number of neutrons Number of electrons Uranium-235 U 92 235 92 143 92 Scandium Sc 21 45 21 45 21 Chlorine Cl 17 35 17 18 17 Gold Au 79 193 79 114 79 Silicon Si 14 28 14 14 14 Carbon C 6 13 6 7 6 Sodium Na 11 24 11 13 11Element name Symbol Atomic number Mass number Number of protons Number of neutrons Number of electrons Gallium Ga 31 68 31 37 31 Ytterbium Yb 70 172 70 102 70 Actinium Ac 89 225 89 136 89 Molybdenum Mo 42 95 42 53 42 Thallium Tl 81 206 81 125 81 Fermium Fm 100 259 100 159 100 Nobelium No 102 261 102 159 102 Unnilhexium (Seaborgium) Sg 106 269 106 163 106

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Note that some of the elements in the table are isotopes. Circle the symbols of the isotopic ones. Element Symbol Atomic Mass Number of Number Number of name number number protons of electrons neutrons Aluminum 27 13 Ar 18 40 33 42 56 26 30 Sb 51 Uranium-235 92 Sc 17 18 193 79 Si 13 11 24 31 37 102 70 225 89 Мо 53 81 206 100 159 No 261 Unnilhexium 106 159

Note that some of the elements in the table are isotopes. Circle the symbols of the isotopic ones. Element Symbol Atomic Mass Number of Number Number of name number number protons of electrons neutrons Aluminum 27 13 Ar 18 40 33 42 56 26 30 Sb 51 Uranium-235 92 Sc 17 18 193 79 Si 13 11 24 31 37 102 70 225 89 Мо 53 81 206 100 159 No 261 Unnilhexium 106 159

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10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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There are only two naturally-occuring stable isotopes of lithium. The mass and natural abundance of one of them is listed in the table below. Use whatever data you need from the ALEKS Periodic Table to determine the identity, mass and natural abundance of the other isotope, and complete the table. Be sure your answers have the correct number of significant digits. isotope Qui Li mass (amu) 0 7.0160 natural abundance [% 92.41% x10 X Ś
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1- For each of the following atoms, calculate the number of protons and neutrons in the nucleus and the number of electrons outside the nucleus (assume neutral atoms). element number of number of number of electrons mass number (A) symbol 126C protons (Z) neutrons 12 10 12 10 14 27 10 23,1Na 11 17 18 2- Calculate the atomic mass to four significant figures for carbon, given the following data: Isotope Exact Atomic Mass (amu) 12.00000 13.00335 Abundance in Nature (%) 98.89 1.110 12C 13C
A fictitious element name Brickminium can be found as three isotopes. Their relative abundances are given in the table. Based on this, what is the relative atomic mass of Brickminium? Isotope Abundance Brickminium-95 3.4 % Brickminium-96 65.0% Brickminium-98 31.6%