1. Which of the following element has an average atomic mass that is about ten timesthat of nitrogen?a. Bismuthc. Ceriumb. Indiumd. Lanthanum2. Which of the following statement is TRUE?a. The average atomic mass of an atom is the weighted average of the knownstable isotope of the element.b. The average atomic mass is based on percent isotopic abundance in nature.c. Both A and B.d. None of the choices.

The average atomic mass of an element is the sum all the masses of its isotopes existing in nature ,…

Answered: 1. Which of the following element has…

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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6 The mass number of an atom isA. the number of protons.B. the number of electrons.C. the number of neutrons.D. the number of protons and neutrons
a. What element has 35 protons? b. What element has 83 electrons? c. What element has 25 protons? d. What element has 0 neutrons? e. What element has 18 electrons?
What is the name for an atom with a nonzero charge? a. Hadron b. lon C. Neutrino d. Quark a
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.
2. The most common isotope of carbon has a mass of 12. Carbon has an atomic number of 6.A. How many protons are in an atom of carbon? 17B. How many neutrons are in an atom of carbon?C. How many electrons are in an atom of carbon?D. Another isotope of carbon has a mass of 14. How many protons, neutrons, and electrons are in this isotope?
Periodic Table 15. Write the letter of each statement that is true about the average atomic mass of an element and the relative abundance of its isotopes. a. In nature, most elements occur as a mixture of two or more isotopes. b. Isotopes of an element do not have a specific natural percent abundance. c. The average atomic mass of an element is usually closest to that of the isotope with the natural highest abundance. d. Because hydrogen has three isotopes with atomic masses of about 1 amu, 2 amu and 3 amu, respectively, the average atomic mass of natural is 2 amu.
Which element is solid at room temperature and a good conductor of heat and electricity? A. hydrogen B. phosphorus C. boron D. sodium
2. Which element forms an ion that is larger than its atom? B. Iron A. Sodium ton 11: C. Nitrogen genera C. remains the sam D. Gold
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
Which of the following statements is TRUE, and why? A. Anions are usually larger than their corresponding atoms. B. A neutral atom contains the same number of protons and neutrons. C. Protons and electrons contribute equally to the mass of the atom.
Which statement regarding the nucleus of an atom is correct? O A. The nucleus contains protons and neutrons and has no charge. O B. The nucleus contains protons and electrons and has no charge. O C. The nucleus contains protons and electrons and is positively charged. O D. The nucleus contains protons and neutrons and is positively charged.
32. An atom contains 27 neutrons and 23 electrons. What element is this atom?

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1. Which of the following element has an average atomic mass that is about ten times that of nitrogen? a. Bismuth c. Cerium b. Indium d. Lanthanum