Which of the following is not a property affected by the effective nuclear charge, Zeff? A) lonization energy. B) Color. C) Electron affinity. D) Atomic radius. E) Ionic radius.

In general, as you go across a period in the periodic table from left to right: (1) the atomic radius (2) the electron affinity becomes (3) the first ionization energy. (1) (2) (3) A decreases, increasingly, increases B. decreases, increasingly, decreases C. increases, increasingly, increases D. increases, increasingly, decreases E. decreases, decreasingly, increases B D E A negative; and

-21 This energy diagram shows the allowed energy levels of an electron in a certain atom. (Note: the SI prefix 'zepto' means 10 - any SI prefix in the ALEKS Data tab.) 1400- 1200- 1000 energy (z)) 800 600- 400- 200- 0 Use this diagram to complete the table below. C B What is the energy of the electron in the ground state? What is the energy of the electron in the first excited state? If the electron makes the transition shown by the red arrow, from A to C, will a photon be absorbed or emitted? Calculate the wavelength of the photon that would be absorbed or emitted. Round your answer to 3 significant digits. Explanation Check Q Search 500 ZJ 600 ZJ O absorbed O emitted nm C X 5 99+ You can find the meaning of © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibilit O

Explain the phrase effective nuclear charge. How is this related to the shielding effect?