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Therefore the outer electron of the sodium switches orbits to the chlorine. This creates a Na+ ion and a Cl- ion. Because opposites attract, it means that the two substances create an ionic bond and form sodium chloride! Group one metals are the most reactive as they only have one, easily removed, electron. However if you view the periodic table:
[ONLINE] Available at: htttp://www.dsoergel.com/NewPublications/HCIEncyclopediaIRShortEForDS.pdf. [Accessed 26 April 2014]. 3. Components of a DBMS | The Web’s Where You Study In!. 2014.
Because... ... middle of paper ... ... shown in the shorthand 1s2 (s orbital level one, two electrons) 2s2 (s orbital level two, two electrons) 2p6 (p orbital level two, six electrons) 3s23p64s23d9. However, copper is unique in that to make the most stable and lowest energy configuration, one of the 4s electrons is brought into the 3d orbital. This makes its electron configuration 1s22s22p63s23p64s13d10. This configuration shows that the first, second, and third shell of copper is completely full, but the fourth shell is not filled. The s subshell is partially filled and the p subshell is completely empty.
Hydrogen, lithium, and sodium have like properties with one electron in the outermost shell (Encyclopedia Britannica. 2011). The valence shell which is the outermost shell of electrons controls the chemical actions of an atom (Encyclopedia Britannica. 2011). The amount of electrons in the shell is contingent on just how many remain after all the inner shells are full (Encyclopedia Britannica.
The Discovery Of The Electron The electron was discovered in 1895 by J.J. Thomson in the form of cathode rays, and was the first elementary particle to be identified. The electron is the lightest known particle which possesses an electric charge. Its rest mass is Me <approximately equal> 9.1 x 10 -28 g, about 1/1836 of the mass of the proton or neutron. The charge of the electron is -e = -4.8 x 10^-10 esu <elec trostatic unit). The sign of the electron's charge is negative by convention, and that of the equally charged proton is positive.