When the three elements Si, P, and As are arranged in order of increasing atomic radius, what is the order? P<Si<As Si<P<As As<P<Si As<Si<P

Which of the following statements is(are) true? a. F has a larger first ionization energy than does Li. b. Cations are larger than their parent atoms. c. The removal of the first electron from a lithium atom (electron configuration is ls2 2s1 ) is exothermic-that is, removing this electorn gives off energy. d. The He atom is larger than the H+ ion. e. The Al atorn is smaller than the Li atom.

For each of the following pairs of atoms or ions, state which you expect to have the larger radius. (a) Na or K (b) Cs or Cs+ (c) Rb+ or Kr (d) K or Ca (e) Cl or Ar

Of the following, which gives the correct order for atomic radius for Mg, Na, P, Si and Ar? Group of answer choices Si ; P ; Ar ; Na ; Mg Ar ; P ; Mg ; Na Ar ; Si ; P ; Na ; Mg Mg ; Na ; P ; Si ; Ar Na ; Mg ; Si ; P ; Ar