Elucidation of the structure of the periodic table The number of electron shells an atom determines the atomic period. Each skin has a subshell, which is loaded according to the following sequence, along with increasing atomic number: 1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 4f 5d 6p 7s 5f 6d 8s 5g 6f 7d 7P 8p
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Senin, 10 Oktober 2011
Salt is NOT made of NaCl molecules. Salt is made of three-dimensional boxes of oppositely charged atoms of sodium and chlorine. A salt crystal is like a single giant molecule ClNaClNaClNaClNaClNa. When salt dissolves, it turns into independent atoms.
Salt water is not full of "sodium chloride." Instead it is full of sodium and chlorine. Atoms are not poisonous and reactive like sodium metal and chlorine gas because they are electrically charged atoms called "ions." Sodium atoms are missing their outer electrons. Because of this, the remaining electrons behave as an electronic shell is full, so that they can not easily react and form chemical bonds with other atoms except by electrical attraction. Chlorine has one extra electron and electron outer shell is complete, so as sodium also can not bond with other atoms. Oppositely charged atoms can attract each other and form salt crystals, but when the crystals are soluble in water, electricity atoms withdraw from one another as the water molecules around them, and they float in water separately.
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what the intent of the remaining electrons behave as a full electronic shell, so that they can not easily react and form chemical bonds with other atoms except by electrical attraction?
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