Atomic+Number

Maria and Jusslia

The Atomic number is the number of protons in an element. The number of protons depends on the kind of element, which is the atomic number. The history of the atomic number is from the research of Henry Gwyn-Jeffreys Moseley. He did research with an x-ray by experimenting with different elements. One example would be like if it was aluminum then the atomic number would be on the left top side of the element and it would be 13 that would be the atomic number. Most elements have a unique number of an atomic number. The protons carry a positive charge. The atomic number is symbolized by z which mexxxxxxxxxxxxxxxans it is equal to whatever the element is. Each atomic number amount is unique because of its different atoms.

N is the nuclear charge of an atom. Henry Gwyn-Jeffrey Mosely established that N=Z but the symbol Z is only used. The first atomic numbers were for the element C which was carbon in 1913 by Henery Mosely. He arraigned the elements by what he found in the X-rays spectrum. He lined them up in a way they can be characterized. An element with the same atomic number makes up a chemical.

References "Atomic number." //Atomic number// (2010): 1. Web. 18 Nov 2010. []. "Chemical elements." //http://en.citizendium.org/wiki/Chemical_elements// (2010): 1. Web. 18 Nov 2010. []. "Atomic number." //Atomic number// (2010): 1. Web. 18 Nov 2010. [].