Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Hello, I need help on #5 please
Write the names and atomic masses of your 2 favorite elements in period 5 of the periodic table 2. Write the chemical symbols and atomic numbers of your 2 least favorite alkaline earth metals. 3. Write the names and chemical symbols of 2 randomly selected metalloids. 5.886 electrons xlo-4= 1 836 4. How many electrons would it take to equal the mass of one proton? e 1836 eiectrons =2 prodon pro fon =1.007 3 amu ne utron = 1o087 amu %3D 5. Write the number of e- and p+ in a. N-3 ion b. V+5 ion c. Fe+3 ion d. C-4 ion. (Numbers are superscripts). 6. Write the name of the isotope and the number of neutrons in a. Z=92 A=237 b. Z=86 A=222 7. Isotope 1 mass= 120.9038amu abundance= 57.4% Isotope 2 mass=122.9042amu abundance=42.6% Find the average atomic mass and identify the element. Use isotope notation to show a. chromium-54 b. strontium-84
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Transcribed Image Text:Write the names and atomic masses of your 2 favorite elements in period 5 of the periodic table 2. Write the chemical symbols and atomic numbers of your 2 least favorite alkaline earth metals. 3. Write the names and chemical symbols of 2 randomly selected metalloids. 5.886 electrons xlo-4= 1 836 4. How many electrons would it take to equal the mass of one proton? e 1836 eiectrons =2 prodon pro fon =1.007 3 amu ne utron = 1o087 amu %3D 5. Write the number of e- and p+ in a. N-3 ion b. V+5 ion c. Fe+3 ion d. C-4 ion. (Numbers are superscripts). 6. Write the name of the isotope and the number of neutrons in a. Z=92 A=237 b. Z=86 A=222 7. Isotope 1 mass= 120.9038amu abundance= 57.4% Isotope 2 mass=122.9042amu abundance=42.6% Find the average atomic mass and identify the element. Use isotope notation to show a. chromium-54 b. strontium-84
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