Common Shortcut Keys. It's hard to remember all the shortcut keys out there. But luckily, most programs adopt conventions (like Ctrl+S, which always saves what you're working on). Even better, programmers typically choose shortcut keys mnemonically (again, like Ctrl+S for Save) to make it easier for us to remember.
This means, that the number of electrons present in an chlorine atom is 17. The energy shells of an atom are in the order K, L, M â¦ So the electronic configuration of chlorine atom is: K, L, M = 2, 8, 7. Valence electrons are the number of electrons present in the outermost shell of an atom. The last shell of a chlorine atom has 7 electrons in it. Therefore, there are 7 valence electrons in an chlorine atom. Here is a video which gives a quick discussion of how to determine how many valence electrons atoms of different elements have.
The observed oxidation state(s), O S, of a chlorine atom are -1, 1, 2, 3, 4, 5, 6 and 7. The figures in bold type are the most frequent. These O S tell us how many valence electrons have been âlostâ from the atom, in forming bonds with other atoms. Chlorine atoms only have positive O S when bonding to either oxygen or fluorine atoms, because these atoms are more electronegative than chlorine.