Effective nuclear charge - Study guides, Class notes & Summaries

CEM 141 MSU Exam 2 PASSED Exam Questions and CORRECT Answers Which reaction requires the most energy? A. N(g) → N+(g) + e - B. N+(g) → N2+(g) + e - C. F(g) → F+(g) + e - D. F+(g) → F2+(g) + e - - Correct ANSWER- D. F+(g) → F2+(g) + e - Fluorine has a higher effective nuclear charge than Nitrogen - so it is harder to remove an electron (takes more energy because the electron is more strongly attracted by the nucleus). Effective nuclear charge is the same for F and F+ because...

CEM 141 MSU Exam 3 Latest Update Graded A+ Ionization Energy energy required to remove an electron from an atom in the gas phase Left Side Electrons have weaker attractions to remove electrons *easier to remove electrons from the left side of the table than the right side* Does it take MORE or LESS energy to remove an electron from Li than from Na? MORE Why? Because as we move down a group, the orbitals become larger and weaker. While going across the effective nuclear charge in...

ETS MFT BUSINESS EXAM The principal difference between variable costing and absorption costing centers on: a) whether variable manufacturing costs should be included as product costs b) whether fixed manufacturing costs should be included as product costs c) whether fixed manufacturing costs and fixed selling and administrative costs should be included as product costs d) none of these. General Bikes is debating which marketing research options to employ. The traditional p...

Which reaction requires the most energy? A. N(g) → N+(g) + e - B. N+(g) → N2+(g) + e - C. F(g) → F+(g) + e - D. F+(g) → F2+(g) + e - - Answer-D. F+(g) → F2+(g) + e - Fluorine has a higher effective nuclear charge than Nitrogen - so it is harder to remove an electron (takes more energy because the electron is more strongly attracted by the nucleus). Effective nuclear charge is the same for F and F+ because the number of protons and core electrons are not changed. However, when t...

Which reaction requires the most energy? A. N(g) → N+(g) + e - B. N+(g) → N2+(g) + e - C. F(g) → F+(g) + e - D. F+(g) → F2+(g) + e - - D. F+(g) → F2+(g) + e - Fluorine has a higher effective nuclear charge than Nitrogen - so it is harder to remove an electron (takes more energy because the electron is more strongly attracted by the nucleus). Effective nuclear charge is the same for F and F+ because the number of protons and core electrons are not changed. However, when the numb...

A cone of depression occurs: a. during soil vapor extraction b. during air sparging c. during ground water extraction d. near landfills due to a drop in housing prices - c. during ground water extraction A corrosive is: a. any material that will corrode any living tissue with which it comes into contact b. any material that will attack and destroy by chemical action, any living tissue with which it comes into contact c. any material that will attack and destroy, by mechanical action, an...

RNAS C Practice Test Review 437 Questions with Verified Answers A capacitor and resisitor in parallel - CORRECT ANSWER will have same voltage across since in parallel. if in series, voltage drops would occur they can be treated together If the absolute pressure of a gas is increased from 3 atm to 4 atm at constant volume, then the absolute temperature of the gas will increase by: A. 25%. B. 33%. C. 67%. D. 75% - CORRECT ANSWER B. Assuming the validity of the Ideal-Gas law, PV = n...

MCGRAW HILL CHEMISTRY CHAPTER 8 PRACTICE TEST QUESTIONS WITH 100% CORRECT DETAILED ANSWERS GRADED A+ Effective nuclear charge - Answer-Reduced by shielding of lower electrons Aufbau Principle - Answer-Electrons placed in lowest energy sublevel Hund's rule - Answer-When orbitals of equal energy are available, the lowest energy configuration has the maximum number of unpaired electrons with parallel spins (put paired electrons at lowest possible place) 4th column and 9th column d-bloc...

Cation vs Anion - ANSWERCation- positive charge Anion- negative charge Electromagnetic Spectrum - ANSWER(Short λ) Gamma, Xray, Ultra Violet, Visible, Infrared, Micro, Radio (Long λ) Frequency vs Wavelength - ANSWERLong Wavelength (λ)→Low Frequency (v) Short Wavelength (λ)→High Frequency (v) Principle Quantum Number - ANSWER(n) - size of orbital 1,2,3,4... Angular Moment Quantum Number - ANSWER(l) - Shape of orbital 0,1,2,3...n-1 Magnetic Quantum Number - ANSWERM₁...

CEM 142 EXAM 1 LATEST UPDATE GRADED A+ bond BREAKING ABSORB energy from surroundings -requires energy to overcome bond FORMING RELEASE energy to surroundings effective nuclear charge charge felt by valence electrons -increase in ENC attracts electrons more strongly toward the nucleus Coulomb's Law opposite charges attract -like charges repel F=kq1q2/r^2 electron pair geometry SHAPE INCLUDING LONE PAIRS -count as bonds molecular shape not including lone pairs ...