Which of the following statements is false? A. Si has a greater (more negative)

Question

Which of the following statements is false?
A. Si has a greater (more negative) first electron affinity than Al
B. NaO is more basic in aqueous solution than Al2O3
C. Al exhibits more metallic behavior than Na
D. Si has a higher first ionization energy than Al

and

Consider the electronic transition from n = 2 to n = 4 in a hydrogen atom and select the correct statement below.
A. A photon of 486 nm wavelength and 4.09x10-19 J energy was emitted from the hydrogen atom during this electronic transition.
B. A photon of 206 nm wavelength and 9.66x10-32 J energy was absorbed by the hydrogen atom during this electronic transition.
C. A photon of 206 nm wavelength and 9.66x10-32 J energy was emitted from the hydrogen atom during this electronic transition.
D. A photon of 486 nm wavelength and 4.09x10-19 J energy was absorbed by the hydrogen atom during this electronic transition.

Any help with these two problems and an explanation on how you got which answer would be greatly appreciated. (:

Explanation / Answer

Si has a higher first ionization energy than Al A photon of 206 nm wavelength and 9.66x10-32 J energy was emitted from the hydrogen atom during this electronic transition.

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