Homework Answers
Electronic configuration
Si(14):-[Ne] 3s23p2
C(6) :- [He] 2s2 2p2
Silicon (14) is similar to carbon (6),both are placed in group 14 also both have same outer electronic configuration both are p block elements.Also silicon is tetravalent same as carbon.Both carbon and silicon are non-metals.Carbon and silicon almost have the same density, with silicon having 2.3 grams per cubic centimeter and carbon having 2.2 grams per cubic centimeter. Both carbon and silicon are solids at room temperature.
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8. Why does carbon contain only 4 valence electrons when it has
6 total electrons?
9.True or False. Oxygen and sulfur have the same number of
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10. True or False. Beryllium and magnesium have the same number
of valence electrons.
11. True or False. Sodium and magnesium have the same number of
valence electrons.
12. What is the relationship between the number of valence
electrons and the column on the periodic table?
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14. Using the periodic table, write the name and symbol of the element with the following...
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You will need to copy/paste the files Elements.txt and Diamonds.txt from Module 13 folder into your...
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Could some please show me how to answer this question Element and Atomic Symbol Number Electronegativ...
Could some please show me how to answer this question
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Element and Atomic Symbol Number Electronegativ (Pauling Scale Atomic Radius (pm) OR 10-12 m 186 Melting...
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-Isotopes are represented by the symbol , where Z is the atomic number, A is the...
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8. Why does carbon contain only 4 valence electrons when it has
6 total electrons?
9.True or False. Oxygen and sulfur have the same number of
valence electrons.
10. True or False. Beryllium and magnesium have the same number
of valence electrons.
11. True or False. Sodium and magnesium have the same number of
valence electrons.
12. What is the relationship between the number of valence
electrons and the column on the periodic table?
13. How is the number of...
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You will need to copy/paste the files Elements.txt and Diamonds.txt from Module 13 folder into your CodeBlocks project folder. PA 13-1 (25 points) The file, Elements.txt, lists information about chemical elements. The information included in six columns is Atomic Number, Symbol, Name, Atomic Weight, Density (gm/cm), Year discovered. Read in and display the first 10 elements in Elements.txt. G:\CodeBlocks-EP\Marsh2050\bin\Debug Marsh2050.exe 1 H Hydrogen 1.007900 0.090000 1776 2 He Helium 4.002600 0.180000 1895 3 Li Lithium 6.941000 0.530000 1817 4 Be...
Could some please show me how to answer this question
Element and Atomic Symbol Number Electronegativ (Pauling Scale Atomic Radius (pm) OR 10-12 m 186 Melting Point (C) 98 Boiling Point (°C) 883 11 0.9 12 160 649 1090 1.2 143 663 Sodium (Na) Magnesium (Mg) Aluminium (AI) Silicon (SI) Phosphorus (P) 2467 117 1410 2355 110 44 280 104 119 445 -101 -34 Sulfur (S) Chlorine (CI) Argon (Ar) 3.0 187 1 -189 -186 (S) 17 99 -101 -34...
Element and Symbol Atomic Radius (pm) OR 10-12 m Atomic Number Melting Point C) Boiling Point C) Electronegativ (Pauling Scal 186 883 Sodium 11 98 0.9 (Na) Magnesium (Mg) 1090 12 160 649 1.2 1.5 Aluminium 13 143 663 2467 (Al) Silicon 1410 14 117 2355 1.8 (Si) Phosphorus (P) 15 110 280 2.1 44 Sulfur (S) 16 104 119 445 2.5 -101 Chlorine 17 99 -34 3.0 (CI) Argon (Ar) 18 71 -189 -186 On the axes below, plot...
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-Isotopes are represented by the symbol , where Z is the atomic number, A is the mass number, and E is the elemental symbol. . Write symbol that represents an isotope of nickel that contains 28 protons and 32 neutrons in the nucleus. Isotopes are also represented by the notation: Name-A, where Name is the name of the of the isotope. An example of this isotope notation is magnesium-26. This represents an isotope of The extremely small size of atoms...
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