Reading lisReview Constants Periodic TablePart CConsider the following two expressions, the only difference being the presence or absence ofparentheses.expression 1 : 3x2expression 2: (3x)?Calculate the difference between the two expressions when x = 3; that is, evaluate bothexpressions then subtract one value from the other.Express your answer numerically.• View Available Hint(s)SubmitPart D

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I Review | Constants Periodic Table Part C Consider the following two expressions, the only difference being the presence or absence of parentheses. expression 1: 3x? expression 2: (3x)2 Calculate the difference between the two expressions when x 3; that is, evaluate both expressions then subtract one value from the other. Express your answer numerically. > View Available Hint(s) Submit

I Review | Constants Periodic Table Part C Consider the following two expressions, the only difference being the presence or absence of parentheses. expression 1: 3x? expression 2: (3x)2 Calculate the difference between the two expressions when x 3; that is, evaluate both expressions then subtract one value from the other. Express your answer numerically. > View Available Hint(s) Submit

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter3: Atomic Shells And Classical Models Of Chemical Bonding

Section: Chapter Questions

Problem 1P: Before the element scandium was discovered in 1879, it was known as “eka-boron.” Predict the...

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A gold nucleus is located at the origin of coordinates, andan electron is brought to a position 2 Å from the origin inthe 1y direction.(a) Calculate the force on the gold nucleus exerted by theelectron giving its components Fx and Fy.(b) Calculate the potential energy of the gold nucleus andthe electron.
Before the element scandium was discovered in 1879, it was known as “eka-boron.” Predict the properties of scandium from averages of the corresponding properties of its neighboring elements in the periodic table. Compare your predictions with the observed values in Appendix F.
Schrodinger and de Broglie suggested a ‘Wave—particle duality" for small particles—that is, if electromagnetic radiation showed some particle-like properties, then perhaps small punicles might exhibit same wave-like properties. Explain. How does the wave mechanical picture of the atom fundamentally differ from the Bohr model? How do wave mechanical arbitals differ from Bohr’s orbits? What does it mean to say that an orbital represents a probability map for an electron?
At large interatomic separations, an alkali halide moleculeMX has a lower energy as two neutral atoms, M + X; atshort separations, the ionic form (M+)(X-) has a lowerenergy. At a certain distance, Rc, the energies of the twoforms become equal, and it is near this distance that theelectron will jump from the metal to the halogen atom during a collision. Because the forces between neutral atomsare weak at large distances, a reasonably good approximation can be made by ignoring any variation in potentialV(R) for the neutral atoms between Rc and R - `. For theions in this distance range, V(R) is dominated by theirCoulomb attraction.(a) Express Rc for the first ionization energy of the metalM and the electron affinity of the halogen X.(b) Calculate Rc for LiF, KBr, and NaCl using data fromAppendix F.
To estimate the boiling point of Oganesson by extrapolating the data for theboiling points of the other noble gases. The boiling points of the noble gases are given below: Helium -269oCNeon -246oCArgon -186oCKrypton -153oCXenon -108oCRadon -62oC 1. Make a nicely labeled graph of boiling point vs. number of electrons.Using this graph, extrapolate your data to make a prediction for the boiling point of oganesson.2. A brief explanation of why this method can be used to make a reasonableestimate of the boiling point of oganesson Your explanation should include a description of the intermolecular forces that are present in samples of these elements, and how they affect their boiling points.
Consider the first ionization energy of neon and the electronaffinity of fluorine. (a) Write equations, including electronconfigurations, for each process. (b) These two quantities haveopposite signs. Which will be positive, and which will be negative?(c) Would you expect the magnitudes of these two quantitiesto be equal? If not, which one would you expect to be larger?
Compared to their neutral atom counterparts, ions will have smaller or larger atomic radii due to their losing or gaining electrons. According to Jensen (2010), Linus Pauling assigned the radius of the oxygen anion (O“) at 140 pm (larger than the neutral atom, 66 pm). On the other hand, the magnesium atom loses 95 ppm from its 160 ppm radius when it loses two valence electrons, forming the magnesium ion. Determine the value of constant B wen constant n is approcimately 8. Unit is in N-m9
This is said to be incorrect, any other suggestion?
Whats the answers to the last 6 blanks at the end of the table.
Complete each ionization equation. Show work for each one. SHOW WORK
A fundamental relationship of electrostatics states that the en-ergy required to separate opposite charges of magnitudes Q1and Q2 that are the distance dapart is proportional to Q1XQ2/d .Use this relationship and any other factors to explain the fol-lowing observations: (a) the IE₂ of He (Z=2) is morethantwice the IE₁ of H (Z=1); (b) the IE₁ of He is less than twice the IE₁ of H.
Write the full electron configuration of the ion oxide, O2- You can indicate superscript through the ^ symbol (e.g. 3s2 could be written as 3s^2) or use the superscript text formatting tool above.

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