Valence electrons in an atom of phosphorus are closer to the nucleus than the valence electrons of
aluminum because:
(A) P has a greater effective nuclear charge and a greater shielding than Al.
(B) P has a greater effective nuclear charge with the same shielding as Al.
(C) P has the same effective nuclear charge with greater shielding than Al.
(D) P has the same effective nuclear charge and the same shielding as Al.
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Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3
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Valence electrons in an atom of phosphorus are closer to the nucleus than the valence electrons of...
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