14. isotopes, is 63.5 amu. One of the isotopes has an atomic weight of 62.9 amu and constitutes 69.1% of the copper isotopes. The other isotope has an abundance of 30.9%. The atomic weight of the second isotope is The average atomic mass of copper, which has two naturally occurring amu. а. 63.2 b. 63.8 c. 64.1 d. 64.8 е. 28.1

14. isotopes, is 63.5 amu. One of the isotopes has an atomic weight of 62.9 amu and constitutes 69.1% of the copper isotopes. The other isotope has an abundance of 30.9%. The atomic weight of the second isotope is The average atomic mass of copper, which has two naturally occurring amu. а. 63.2 b. 63.8 c. 64.1 d. 64.8 е. 28.1

Chemistry

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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You have a 1kg mass of each of elements A and B. Element A has a higher atomic mass than element B. Which of these is true? a. None of the others. b. A has more atoms than B. c. They have the same number of atoms, d. You cannot say with the information provided. e. B has more atoms vthan A.
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16. Average atomic mass is different from mass number because... A. the average atomic mass describes the mass number of a single atom, but mass number describes the average of all exact masses among isotopes of an element. B. mass number describes the approximate mass of the nucleus of a single atom, but average atomic mass describes the weighted average of all the exact masses among isotopes of an element. C. mass number describes the exact mass of a single atom, but average atomic mass describes the average of all mass numbers. O D. mass number describes the approximate mass of the nucleus of a single atom, but average atomic mass describes the largest mass among isotopes of an element.
d. A sample of potassium atoms is made up of 54% 39K and 46% 41K. Use this information to find the relative atomic mass of potassium.
10. The mass of a neutron is a) 0 a.m.u. b) 1 a.m.u. c) -1 a.m.u. 11. The charge on a proton is: a) 0 b) +1 c) -1 12. Which tells you the identity of an atom? a) The atomic mass b) The number of protons c) The number of neutrons 13. An isotope of an element has: a) The same number of protons but different number of electrons. b) The same number of neutrons but different number of protons. c) The same number of protons but different number of neutrons 14. Two particles found inside the nucleus of an atom are: a. neutrons and electrons b. protons and electrons c. protons and neutrons 15. How many protons does the Na (sodium) atom have? (Hint: use your peric a) 7 b) 11 c) 23 d) 10
7. How many neutrons are there in carbon-14 A. 6 B. 8 C. 14 D. 20 8. How many protons are there in an atomic with 8 neutrons and 10 electrons A. 8 B. 10 C. 2 D. 18
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4. An atom is electrically neutral because the A. number of protons equals the number of electrons B. number of protons equals the number of neutrons C. ratio of number of neutrons to the number of electrons is 1:1 D. ratio of number of neutrons to the number of protons is 1:1.5 21Illuminate Education TM Inc. DELL F3 F4 F5 F6 F7 F8 F9 F10 SC F1 F2 # $ & 3 7 8 W T Y A S F 1H C Alt E