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Refer to the explanation. For the main group (representative) elements, the valence electrons are the outermost (highest energy) "s" and "p" electrons, which make up the valence shell. The valence electrons participate in chemical reactions. The main group elements are the A groups, or groups 1,2,13-18. The core electrons are in the inner shells and do not participate in chemical reactions ...
Ernest Z. · mrpauller.weebly.com. Oct 27, 2014. Chlorine has seven valence electrons. Chlorine has atomic number 17. The atomic number is the number of protons present in the nucleus of an atom.All the atoms of an element have same atomic number. In every stable atom the number of electrons is equal to the number of protons.
full ground state electron configuration: 1s^2 2s^2 2p^6 3s^2 3p^5 abbreviated: "[Ne]" 3s^2 3p^5 Chlorine has an atomic number of 17, which means it has 17 protons and therefore 17 electrons in its atomic form. We'll need to know how many sublevel is present in each energy level, and in turn, how many electrons each sublevel can accommodate. From the given table, for energy level 1, there's ...
The valence electrons are the electrons in the outermost electron shell of an atom. That is why elements whose atoms have the same number of valence electrons are grouped together in the Periodic Table. Generally, elements in Groups 1, 2, and 13 to 17 tend to react to form a closed shell, corresponding to the electron configuration s^2p^6.
The valence electron configuration for chlorine is s^2 p^5. Chlorine has an electron configuration of 1s^2 2s^2 2p^6, 3s^2 3p^5. Chlorine is found in the group 17, the halogens on the periodic table. Chlorine is in the 3rd energy level, (3rd row) and 5th column of the 'p' block 3p^5. The valence electrons are always found in the 's' and 'p' orbitals of the highest energy level of the electron ...
Chlorine has 7 valence eletrons. Explanation: You know this by looking at the groups (vertical) of the periodic table. Chlorine is in the Halogens (Group 17) so it has a -1 charge (meaning 7 valence electrons; one short of 8, which makes a full octet) Answer link. iOS.
Valence electrons are the electrons present in the outermost shell of an atom. You can easily determine the number of valence electrons an atom can have by looking at its Group in the periodic table. For example, atoms in Groups 1 and 2 have 1 and 2 valence electrons, respectively. Atoms in Groups 13 and 18 have 3 and 8 valence electrons ...
Explanation: The atom has 7 valence electrons. As are most elemental gases, chlorine is diatomic, and since the electrons are shared in a covalent bond, each chlorine atom is associated with 8 electrons. Answer link. iOS.
7 Chlorine's electron configuration is [Ne]3s^2\3p^5. So, it has 3 electron shells, and the outermost shell has 2+5=7 valence electrons. Anyways, it is in the halogen group (Group 7), so it has 7 valence electrons. When it becomes an ion, chlorine wants another electron, and becomes (Cl^-).
May 28, 2018. Refer to the explanation. Explanation: If the atom is neutral, the sum of the core and valence electrons is the same as the number of protons, which is the atomic number of the element. So if the sum of the core and valence electrons in a neutral atom equals 25, that is the number of protons in the atomic nucleus, and the atomic ...