Advanced Placement Chemistry 1980 Free Response Questions
9)
(a) Write the ground-state
electron configuration for an arsenic atom, showing the number of
electrons in each subshell.
(b) Give one permissible set of
four quantum numbers for each of the outermost electrons in a
single As atom when it is in its ground state.
(c) Is an isolated arsenic atom
in the ground state paramagnetic or diamagnetic? Explain briefly.
(d) Explain how the electron
configuration of the arsenic atom in the ground state is
consistent with the existence of the following known compounds:
Na3As, AsCl3,
and AsF5.
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