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Solution. We can draw the Lewis structure of any covalent molecule by following the six steps discussed earlier. In this case, we can condense the last few steps, since not all of them apply. Calculate the number of valence electrons: XeF 2: 8 + (2 × 7) = 22XeF 6: 8 + (6 × 7) = 50.
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- 2016
A Lewis symbol consists of an elemental symbol surrounded by one dot for each of its valence electrons: Figure 7.9 shows the Lewis symbols for the elements of the third period of the periodic table. Figure 7.9 Lewis symbols illustrating the number of valence electrons for each element in the third period of the periodic table.
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Nov 21, 2017 · So its state symbol will be $\text{(aq)}$. Hydrogen on the other hand is a gas (at room temperature and above) and highly insoluble in water: it will leave the reaction as gas and its state symbol will be $\text{(g)}$. So without knowing the physical/chemical properties of the reagents/reaction products, the state symbols cannot be determined.
Dec 10, 2023 · Its Lewis symbol would therefore be: Fluorine, for example, with the electron configuration [He]2s 2 2p 5, has seven valence electrons, so its Lewis dot symbol is constructed as follows: Figure 8.1.2. Lewis used the unpaired dots to predict the number of bonds that an element will form in a compound. Consider the symbol for nitrogen in Figure 8 ...
Created by. hnnh67875. Study with Quizlet and memorize flashcards containing terms like What is the state symbol for a solid?, What is the state symbol for a liquid?, What is the state symbol for a gas? and more.
Solid, Liquid, Gas & Aqueous. State symbols are written after each formula in chemical equations to show which physical state each substance is in. Brackets are used and they are not usually subscripted although you may come across them written in this way. Aqueous should remind you of the word 'aqua' and means the substance is dissolved in water.
The nitric acid is a solution, meaning that it is dissolved in water and should have the state symbol (aq). We can therefore write the following: C u ( ) + H N O ( ) p r o d u c t s s a q 3 The keyword “produces” indicates that the copper(II) nitrate, nitrogen dioxide, and water are all products.
