For a molecule formed from one atom each of carbon, oxygen and sulfur, which atom is most probably the central atom? Question 10 options: O C S
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For a molecule formed from one atom each of carbon, oxygen and sulfur, which atom is most probably the central atom?
Question 10 options:
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O |
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C |
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S |
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- For a molecule formed from one atom each of chlorine, nitrogen, and oxygen, which atom is most probably the central atom? Question 9 options: N Cl OWhich of the following has one lone electron? Question 4 options: a) nitrogen b) carbon c) oxygen d) beryllium e) fluorineBased on its chemical family, which of the following elements is likely a strong, hard metal with a high melting point, is a good conductor of electricity, and forms multivalent ions? Question 3 options: a) magnesium b) iron c) lithium d) argon
- Which of the following has one lone pair of electrons? Question 1 options: a) nitrogen b) fluorine c) oxygen d) chlorine e) carbon Which of the following has one lone electron? Question 4 options: a) nitrogen b) carbon c) oxygen d) beryllium e) fluorineAssignment 3.14 Which sets are valid pair of contributing structure.Which of the following noble gases have been observed to form compounds? Question 34 options: a) He and Ar b) The noble gases never form compounds since they have filled outer shells. c) Xe d) Kr and Xe e) Ar, Kr, and Xe
- In the three-dimensional structure of methane CH4 , the hydrogen atoms attached to a carbon atom are aligned ________. Question 3 options: at the corners of a rectangle at the corners of a tetrahedron in a straight line at the corners of a cubeSelect 2 oxygen atoms. a )How many valence electrons are in each oxygen atom? b)Is an oxygen atom a metal or a non-metal? C)Did the combination of these atoms create a covalent or ionic bond 'd)How are the valence electrons organized to form a bond between the atoms?e. How is this bond different from the bond in the fluorine molecule in question 1?QUESTION 14 A double bond consists of __________ pairs of electrons shared between two atoms. a 4 b 6 c 1 d 3 e 2
- QUESTION 10 In general, as you go across a period in the periodic table from left to right: (1) the atomic radius __________; (2) the electronegativity __________; and (3) the first ionization energy __________. a increases, increasingly, increases b decreases, increasingly, increases c decreases, increasingly, decreases d increases, increasingly, decreases e decreases, decreasingly, increasesQuestion 3: Carbon dioxide (CO2) and methane (CH4) exists as gaseous substances at room temperature. But dry ice is solid while liquefied natural gas (LNG) is liquid. Discuss the bonding pattern among the molecules of dry ice and LNG.Question- Three different non-metals (X, Y and Z) are combined. a) Draw the Lewis structure of X, Y and Z if element X is from Group 4A, and elements Y and Z are from Group 6A? b) What is the VSEPR shape of your drawn Lewis structure from part A? c) Is your drawn Lewis structure Polar or Non Polar?
