Aluminum #s^2p^1# has 3 valence electrons and an oxidation state of +3 or #Al^(+3)# Oxygen #s^2p^4# has 6 valence electrons and an oxidation state of -2 or #O^(−2)# The common multiple of 2 and 3 is 6. One +3 oxidation state for Aluminum can be found in the compound aluminum oxide, Al 2 O 3. It is these "free electrons" that allow metals to conduct an electric current. The halogens all have seven valence electrons. These electrons fall into energy levels. aluminum valence electrons Thus, it contains 13 electrons. 0 Answers/Comments. Electron Affinity – Aluminium. Oxidation States. Maths. Compounds of aluminum follow similar trends. Electron affinity of Aluminium is 42.5 kJ/mol. The other two are +1 and +2. Its outermost shell is 3 and thus has 3 valence electrons from subshells 3s and 3p. Aluminum has an atomic number of 13. We will need 2 aluminum atoms to get a +6 charge and 3 oxygen atoms to get a -6 charge. s. Ourmine|Points 10| Log in for more information. Aluminum has three valence electrons. Aluminum has three oxidation states. Updated 11/12/2014 9:49:56 AM. Chemical Properties of Aluminum. Question. That means that it has 13 protons. The electron configuration for Aluminum is 1s 2 2s 2 2p 6 3s 2 3p 1. Therefore the Aluminium electron configuration will be 1s 2 2s 2 2p 6 3s 2 3p 1. The charge of an aluminum ion is typically 3+. The most common one is +3. This answer has been confirmed as correct and helpful. The ground state electron configuration is [Ne]3s 2 3p 1. Which element has the fewest valence electrons available for bonding? Electron affinity The energy released when an electron is added to the neutral atom and a negative ion is formed. 2 of them fall into the first energy level and 8 fall into the second energy level. The valence shell of aluminum has three electrons, and per the octet rule, these three electrons are lost resulting in just 10 electrons and 13 protons.Aluminum then has three excess protons so the charge of a base aluminum ion is 3+. Electronegativity (Pauling scale) The tendency of an atom to attract electrons towards itself, expressed on a relative scale. In chemistry and atomic physics, the electron affinity of an atom or molecule is defined as: the change in energy (in kJ/mole) of a neutral atom or molecule (in the gaseous phase) when an electron is … The atoms of metal elements are characterized by the presence of valence electrons, which are electrons in the outer shell of an atom that are free to move about. Valence Electrons: 3s 2 p 1 Electron Dot Model. 3. When the charges are equal and opposite the atoms will bond as #Al_2O_3#. Aluminum with 13 electrons has a configuration of {eq}\rm \rm 1s^2~2s^2~ 2p^6~3s^2 ~3p^1 {/eq}. Edited by jeifunk [11/12/2014 9:49:55 AM], Confirmed by jeifunk [11/12/2014 9:49:56 AM] Video: Aluminium Electron Configuration Notation The configuration notation provides an easy way for scientists to write and communicate how electrons are arranged around the nucleus of an atom. Asked 11/12/2014 9:23:20 AM. Aluminum trichloride (AlCl 3), aluminum hydride (AlH 3), and aluminum hydroxide (Al(OH) 3) indicate a valence of three for aluminum, with six valence electrons in the bonded molecule.However, the stability of aluminum hydride ions (AlH 4 –) indicates that Al can also support an octet of valence shell electrons. To balance out this positive charge, it needs 13 electrons. Electrical conductivity in metals is a result of the movement of electrically charged particles. This is because the element’s atomic number is 13, reflecting the fact that it has 13 electrons and 13 protons.

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