PRINCIPLES+REACTIONS
8th Edition
ISBN: 9781337759632
Author: Masterton
Publisher: CENGAGE L
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Chapter 2, Problem 44QAP
How many nonmetals are in the following periods?
(a) period 2 (b) period 4 (c) period 6
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1. Using the various group classifications from the periodic table, assign all appropriate labels to each of the following elements. Each element will have multiple (2 or more) answers.
(a) Silver
(b) Tennessine
(c) Samarium
(d) Antimony
2. Calculate the numbers of each type of nucleon and the number of electrons in each of the following species.
(a) neodymium-149
(b) tantalum-179
(c) sellenium-79 dianion
(d) krypton-85 trication
3. Write the ground-state electron configuration for the following atoms or ions. Use core notation in your electron configurations at your own discretion.
(a) As
(b) Au
(c) Ce
(d) Zn2−
(e) Po4+
4. Write an appropriate set of four quantum numbers (n, l, ms & ms) that could be representative of a valence electron in each of the following atoms or ions.
(a) Bi
(b) Sr
(c) Mo
(d) Ru2+
(e) Eu
5. In theory, there are an infinite number of energy levels and atomic orbital types that we can define using the solutions to the Schrödinger…
(a) How many elements are found in period 4 in the periodic table? (b) How many elements are found in group 4A (or 14)?
5. Using the periodic table, classify each of the following
elements as a metal or a nonmetal, and then further classify
each as a main-group (representative) element, transition
metal, or inner transition metal:
(A) cobalt
(B) europium
(C) iodine
(D) indium
Chapter 2 Solutions
PRINCIPLES+REACTIONS
Ch. 2 - Atomic Theory and Laws State in your own words the...Ch. 2 - State in your own words the law of constant...Ch. 2 - Two basic laws of chemistry are the law of...Ch. 2 - Two basic laws of chemistry are the law of...Ch. 2 - Who discovered the electron? Describe the...Ch. 2 - Who discovered the nucleus? Describe the...Ch. 2 - Selenium is widely sold as a dietary supplement....Ch. 2 - Radon is a radioactive gas that can cause lung...Ch. 2 - How do the isotopes of argon, Ar-36, Ar-38, and...Ch. 2 - Consider two isotopes Fe-54 and Fe-56. (a) Write...
Ch. 2 - Uranium-235 is the isotope of uranium commonly...Ch. 2 - An isotope of americium (Am) with 146 neutrons is...Ch. 2 - Prob. 13QAPCh. 2 - Prob. 14QAPCh. 2 - Prob. 15QAPCh. 2 - See the definition for isobars in Question 15....Ch. 2 - Calculate the mass ratio of a bromine atom to an...Ch. 2 - Arrange the following in the order of increasing...Ch. 2 - Cerium is the most abundant rare earth metal. Pure...Ch. 2 - Consider the three stable isotopes of oxygen with...Ch. 2 - Bromine has two occuring isotopes: 79Br with...Ch. 2 - Rubidium has two naturally occurring isotopes:...Ch. 2 - Strontium has four isotopes with the following...Ch. 2 - Neon is an inert gas with three stable isotopes....Ch. 2 - Naturally occurring silver (Ag) consists of two...Ch. 2 - Copper has two naturally occurring isotopes. Cu-63...Ch. 2 - Silicon (averageatomicmass=28.0855amu) has three...Ch. 2 - Magnesium (averageatomicmass=24.305amu) consists...Ch. 2 - Zinc has four stable isotopes: Zn-64, Zn-66,...Ch. 2 - Chlorine has two isotopes, Cl-35 and Cl-37. Their...Ch. 2 - Lead is a heavy metal that remains in the...Ch. 2 - Silversmiths are warned to limit their exposure to...Ch. 2 - Determine (a) the number of atoms in 0.185 g of...Ch. 2 - For bismuth (Bi), determine (a) the number of...Ch. 2 - The isotope Si-28 has a mass of 27.977 amu. For...Ch. 2 - Myocardial perfusion imaging (MPI) is the latest...Ch. 2 - A cube of sodium has length 1.25 in. How many...Ch. 2 - A cylindrical piece of pure copper (d=8.92g/cm2)...Ch. 2 - Give the symbols for (a) potassium (b) cadmium (c)...Ch. 2 - Prob. 40QAPCh. 2 - Prob. 41QAPCh. 2 - Prob. 42QAPCh. 2 - How many metals are in the following groups? (a)...Ch. 2 - How many nonmetals are in the following periods?...Ch. 2 - Which group in the periodic table (a) has one...Ch. 2 - Which period of the periodic table (a) has no...Ch. 2 - Prob. 47QAPCh. 2 - Prob. 48QAPCh. 2 - Prob. 49QAPCh. 2 - Prob. 50QAPCh. 2 - Prob. 51QAPCh. 2 - Complete the table given below.Ch. 2 - Classify the following compounds as electrolytes...Ch. 2 - Prob. 54QAPCh. 2 - Prob. 55QAPCh. 2 - Prob. 56QAPCh. 2 - Prob. 57QAPCh. 2 - Write the names of the following molecules. (a)...Ch. 2 - Prob. 59QAPCh. 2 - Prob. 60QAPCh. 2 - Prob. 61QAPCh. 2 - Prob. 62QAPCh. 2 - Prob. 63QAPCh. 2 - Prob. 64QAPCh. 2 - Write the names of the following ionic compounds....Ch. 2 - Prob. 66QAPCh. 2 - Complete the following table.Ch. 2 - Complete the following table.Ch. 2 - Prob. 69QAPCh. 2 - Prob. 70QAPCh. 2 - Prob. 71QAPCh. 2 - Prob. 72QAPCh. 2 - Criticize each of the following statements: (a)...Ch. 2 - Which of the following statements is/are always...Ch. 2 - Some brands of salami contain 0.090% sodium...Ch. 2 - Carbon tetrachloride, CCl4, was a popular...Ch. 2 - Prob. 77QAPCh. 2 - Prob. 78QAPCh. 2 - Prob. 79QAPCh. 2 - Use the law of conservation of mass to determine...Ch. 2 - Prob. 81QAPCh. 2 - Prob. 82QAPCh. 2 - Scientists are trying to synthesize elements with...Ch. 2 - Write the nuclear symbol for the element whose...Ch. 2 - Prob. 85QAPCh. 2 - Write the atomic symbol for the element whose ion...Ch. 2 - Prob. 87QAPCh. 2 - Three compounds containing only carbon and...Ch. 2 - Ethane and ethylene are two gases containing only...Ch. 2 - Calculate the average density of a single Al-27...Ch. 2 - Prob. 91QAPCh. 2 - Each time you inhale, you take in about 500 mL...Ch. 2 - Hydrogen gas is prepared in a lab experiment. In...
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- 2-44 Which period(s) in the Periodic Table contain(s) more nonmetals than metals? Which contain(s) more metals than nonmetals?arrow_forward11. Write the symbol for each of the following ions: (a) the ion with a 1+ charge, atomic number 55, and mass number 133 (b) the ion with 54 electrons, 53 protons, and 74 neutrons (c) the ion with atomic number 15, mass number 31, and a 3- charge (d) the ion with 24 electrons, 30 neutrons, and a 3+ chargearrow_forwardv. Answer true or false. (a) Mendeleev discovered that, when elements are arranged in order of increasing atomic weight, certain sets of properties recur periodically. (b) Main-group elements are those in the columns 3A to 8A of the Periodic Table. (e) Nonmetals are found at the top of the Periodic Table, metalloids in the middle, and metals at the bottom. (d) Among the 116 known elements, there are approximately equal numbers of metals and nonmetals. (e) A horizontal row in the Periodic Table is called a group. () The Group 1A elements are called the "alkali metals." (g) The alkali metals react with water to give hydrogen gas and a metal hydroxide, MOH, where “M" is the metal. (h) The halogens are Group 7A elements. (1) The boiling points of noble gases (Group 8A elements) increase in going from top to bottom of the column.arrow_forward
- Give the group name for each of the following elements:(a) krypton(b) selenium(c) barium(d) lithiumarrow_forward(d) the ion with 74 electrons, 116 neutrons, and a +3 chargearrow_forwardUsing the periodic table, classify each of the following elements as a metal or a nonmetal, and then further classify each as a main-group (representative) element, transition metal, or inner transition metal:(a) cobalt(b) europium(c) iodine(d) indium(e) lithium(f) oxygen(h) cadmium(i) terbium(j) rheniumarrow_forward
- Which of the following chemical formulas are NOT written correctly? (a) F3P (b)NH4+ (c) Fe(NO3)2 (d) H2S (e) All of these are written correctlyarrow_forwardCorrect each of the following statements:(a) In the modern periodic table, the elements are arranged inorder of increasing atomic mass.(b) Elements in a period have similar chemical properties.(c) Elements can be classified as either metalloids or nonmetalsarrow_forwardProvide the symbol of the following monatomic ions, given the number of protons and electrons in each. (a) 8 protons, 10 electrons (b) 20 protons, 18 electrons (c) 53 protons, 54 electrons (d) 26 protons, 24 electronsarrow_forward
- Using the periodic table, classify each of the following elements as a metal or a nonmetal, and then further classify each as a main-group (representative) element, transition metal, or inner transition metal:(a) uranium(b) bromine(c) strontium(d) neon(e) gold(f) americium(g) rhodium(h) sulfur(i) carbon(j) potassiumarrow_forwardAtoms of each of the following elements are essential for life. Give the group name for the following elements:(a) chlorine(b) calcium(c) sodium(d) sulfurarrow_forwardWrite the symbol for each of the following ions:(a) the ion with a 1+ charge, atomic number 55, and mass number 133(b) the ion with 54 electrons, 53 protons, and 74 neutrons(c) the ion with atomic number 15, mass number 31, and a 3− charge(d) the ion with 24 electrons, 30 neutrons, and a 3+ chargearrow_forward
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