Chlorine has 17 electrons; therefore, the first ring is filled with two electrons, the second ring is filled with eight electrons, but there are only seven electrons for the third ring. Each Cl has 3 lone pairs for a total of 12 lone pairs. If I want to figure out how many valence electrons chlorine has, I have to look for the electrons in the outermost shell, or the outermost energy level. The chemical element chlorine has 17 electrons, 17 protons and 18 neutrons. An atom, which is the fundamental unit of an element, contains an equal number of electrons and protons. C = 4. That's a total of 33 valence electrons. P has 5 valence electrons. B. $\begingroup$ "Every element wants 8 valence electrons" is just a simplified description for people to get started with chemistry. So I have, once again, the first energy level, the second energy level, and the third energy level. Based on the periodic table the , the atomic number (Z) of chlorine is 17. Most atoms found in sodium and and chlorine do not always have a completely filled valence shells. The names for positive and negative ions are pronounced CAT-eye-ons and ANN-eye-ons, respectively. H = 1----- 26 electrons. Each Cl has 7 valence electrons. Cloride is a chlorine atom, which has found that last electron and added it to the outermost valence shell to become stable. The atomic number of Cl is 17 and its simple electron arrangement is 2, 8, 7 …The region containing 7 electrons is called valence shell and remaining 10 electrons constitute core electrons…Thus Cl has core of Ne… On the right, the chloride ion has 18 electrons and has a 1− charge. 7 (Seven) Which electron dot diagram shows the bonding between 2 chlorine atoms? 4 (Four) Nylon is a "big" covalent molecule used to make backpacks. We just add the valence electrons of each atoms involved. The four P-Cl bonds use 8 electrons. How many electrons do carbon and oxygen share? On the left, the chlorine atom has 17 electrons. If I want to figure out how many valence electrons chlorine has, I have to look for the electrons in the outermost shell, or the outermost energy level. Cl = 7 x 3. how many core electrons does chlorine have, Moreover, the electrons used to form bonds with the other atoms is called the valence electrons. Chlorine is an element that belongs to Group7A in the periodic table. Octet rule has its limits and many exceptions, $\ce{ClF3}$ is a typical example of hypervalent molecules. This makes chlorine's valence shell incomplete, and the atom attracts "loose" electrons to this shell to complete it, so the atom can be stable. Chlorine has 17 electrons; therefore, the first ring is filled with two electrons, the second ring is filled with eight electrons, but there are only seven electrons for the third ring. So I want the total number of electrons … Which property of covalent compounds is most useful in making backpacks? 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