Jul 19, 2022 · Potassium has \ (1\) electron present in its valence shell. Nitrogen: The atomic number of nitrogen is \ (7.\) It is present in group \ (5\) of the Periodic Table of Elements. It has \ (7\) electrons distributed in \ (2\) energy shells. The electronic configuration of nitrogen is \ (2,\,5.\). In chemistry, a valence electron is an electron that is associated with an atom, and that can participate in the formation of a chemical bond; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair. Basically they are the "highest energy, farthest out" electrons surrounding the nucleus .... How many valence electrons does 1s2 2s2 2p6 3s2 3p4 have? 6. Which electron configuration is an atom in an excited state? A. 1s2 2s2 2p6 3p1 B. 1s2 2s2 2p6 3s2 3p1 C. 1s2 2s2 2p6 3s2 3p2 D. 1s2 2s2 2p6 3s2. A. What is the classification of the element with electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d5?. May 02, 2022 · Atomic structure and electron configuration;.
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