52. Решение задачи по химии №005 247

5.1. Compose the electronic formula of atom A, taking into account the minimum energy and the graphical formula for valence electrons. Show the distribution of electrons by energy levels. Determine the number of protons, electrons, neutrons.
Determine the stable / unstable / state of the atom and the possible failure of electrons. Compose an electronic formula taking into account the dip of electrons (if any).
2. Determine the possible covalent states of the atom B and the covalence of the ions formed by this atom. Write electronic formulas for ions. For the valence electrons of atom B, indicate the set of all four quantum numbers.
Table 2.
Job number A B
5 89Ac O0, O-2, O 1

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