Answered: Explain what characteristics of…

Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter3: Electronic Structure And The Periodic Law

Section: Chapter Questions

Problem 3.38E

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Similar questions

Classify the following as metals, nonmetals, or metalloids: a.argon b.element 3 c.Ge d.boron e.Pm
Arrange the following in the order of increasing mass. (a) a potassium ion, K+ (b) a phosphorus molecule, P4 (c) a potassium atom (d) a platinum atom
Mass spectrometric analysis showed that there are four isotopes of an unknown element having the following masses and abundances: Three elements in the periodic table that have atomic weights near these values are lanthanum (La), atomic number 57, atomic weight 138.9055; cerium (Ce), atomic number 58, atomic weight 140.115; and praseodymium (Pr), atomic number 59, atomic weight 140.9076. Using the data above, calculate the atomic weight, and identify the element if possible.
What is the name of the element in Group 4A and Period 5?
Based on periodic table position, select the two elements in each set of elements that would be expected to have similar chemical properties. a. 11Na, 14Si, 23V, 55Cs b. 13Al, 19K, 32Ge, 50Sn c. 37Rb, 38Sr, 54Xe, 56Ba d. 2He, 6C, 8O, 10Ne
Scientists are trying to synthesize elements with more than 114 protons. State the expected atomic number of (a) the newest inert gas. (b) the new element with properties similar to those of the alkaline earth metals. (c) the new element that will behave like the halogens. (d) the new (nontransition) metal whose ion will have a +2 charge. (e) the new element that will start period 8.
Which of the following is true about an individual atom? Explain. a. An individual atom should be considered to be a solid. b. An individual atom should be considered to be a liquid. c. An individual atom should be considered to be a gas. d. The state of the atom depends on which element it is. e. An individual atom cannot be considered to be a solid, liquid, or gas. Justify your choice, and for choices you did not pick, explain what is wrong with them.
2-101 Complete the following table: Symbol Atomic number Atomic weight Mass number # of protons # of neutrons # of electrons H 0 Li 4 3 Al 26 58 78 17 20
Fill in the blanks in the following table. Selenium is Z = 34, Se, and tellurium is Z = 52, Te. Acid Name Acid Formula Acid Name Acid Formula HCl HClO4 Nitric acid Hydroiodic acid H3PO4 HClO2 Hydro sulfuric acid Selenic acid HNO2 HBrO2 Hydro selenic acid
Distinguish between the terms family and period in connection with the periodic table. For which of these terms is the term group also used?
2.26 In what region of the periodic table are you likely to find elements that form more than one stable ion?
Classify each of the following elements as a noble gas, representative element, transition element, or inner transition element. a. 1H b. 44Ru c. 51Sb d. 86Rn

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Explain what characteristics of metalloids are more like metals and which are more like nonmetals, based on Na, Mg, Fe, Cl, and Ar.