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LEWIS DOT STRUCTURES

LEWIS DOT STRUCTURES. FOR IONIC COMPOUNDS. To draw a Lewis structure or electron dot diagram for an ion you will need to follow the following steps: Find the element on the periodic table Determine the nearest noble gas

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LEWIS DOT STRUCTURES

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  1. LEWIS DOT STRUCTURES FOR IONIC COMPOUNDS

  2. To draw a Lewis structure or electron dot diagram for an ion you will need to follow the following steps: • Find the element on the periodic table • Determine the nearest noble gas • Determine the number of electrons lost or gained so that the element will have the same number of electrons as the nearest noble gas. Remember that noble gases have an especially stable electron population. All elements will tend to gain, lose or share electrons to become like their nearest noble gas. This is called the octet rule. • Determine the charge that the ion will form. • Draw the Lewis structure. • Remember that positive ions contain no dots; negative ions contain 8 dots. • Write the symbol of the element • Place the appropriate number of dots around the element • Enclose this in square brackets • Write the charge on the ion as a superscript outside the square brackets.

  3. http://www.saskschools.ca/curr_content/chem20/ionicpds/edotcpds.htmlhttp://www.saskschools.ca/curr_content/chem20/ionicpds/edotcpds.html

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