Which is the correct lewis dot structure of nh2-?

Question

Alphonso Olson · Accepted Answer

D. The total number of valence electrons is 8 and D represents that. D also correctly uses the octet rule for N and duet rule for H.

Alphonso Olson · Answer

The correct answer is Option D.Explanation:Lewis dot structures are the structures which represent the valance electrons of an element forming a compound. The electrons are represented as the dots.In a compound, the bonded electrons are represented as a bond and lone pair of electrons are represented as dots. In compound,Electronic configuration of Nitrogen: Valence electrons in nitrogen = 5Electronic configuration of hydrogen: Valence electrons in hydrogen = 1In the given compound, bond pairs are 2 which means number of electrons bonded are 4.Unbonded electrons left on nitrogen will be 3 and this compound has an extra electron because of the negative charge present on the compound. Hence, total unbonded electrons present on this compound will be 4.Therefore, the lewis dot structure will be Option D.

Alphonso Olson · Answer

Both H and F atoms are bonded to the central carbon atom with single bonds and it's in a box form.Explanation: Carbon has four valence electrons, H has one valence electron and F has seven valence electrons. All elements try to complete their nearest noble gas like electron configuration. Nearest noble gas to H is He and so it wants to complete two valence electrons. Rest of the elements try to complete eight electrons in their valence shell. As H has one valence electron, it forms a single covalent bond to complete two electrons in its valence shell.F has seven valence electrons and it needs one more to complete eight electrons in its valence shell and so it also makes a single covalent bond.Carbon has four valence electrons and it needs four more electrons to complete eight electrons to its valence shell.So, in Lewis dot structure of the carbon atom is the central atom and two H and two F atoms are bonded to it with single covalent bonds.The molecular geometry of the molecule is tetrahedral(in box form). Lewis structure of the molecule is attached.

Alphonso Olson · Answer

Both H and F atoms are bonded to the central carbon atom with single bonds and it's in a box form.Explanation: Carbon has four valence electrons, H has one valence electron and F has seven valence electrons. All elements try to complete their nearest noble gas like electron configuration. Nearest noble gas to H is He and so it wants to complete two valence electrons. Rest of the elements try to complete eight electrons in their valence shell. As H has one valence electron, it forms a single covalent bond to complete two electrons in its valence shell.F has seven valence electrons and it needs one more to complete eight electrons in its valence shell and so it also makes a single covalent bond.Carbon has four valence electrons and it needs four more electrons to complete eight electrons to its valence shell.So, in Lewis dot structure of the carbon atom is the central atom and two H and two F atoms are bonded to it with single covalent bonds.The molecular geometry of the molecule is tetrahedral(in box form). Lewis structure of the molecule is attached.

Alphonso Olson · Answer

DOE. EExplanation:

Alphonso Olson · Answer

hi Explanation:bye

Alphonso Olson · Answer

None of theseExplanation::-Valence electrons of oxygen = 6The total number of the valence electrons  = 2(6) = 12The Lewis structure is drawn in such a way that the octet of each atom and duet for the hydrogen in the molecule is complete. So, The Lewis structure is shown in image below.Formula for formal charge :Formal charge for oxygen:From the structure, Number of bond pairs = 4 (Double bond)Number of lone pairs = 4Hence, the correct option is:-   None of these

Alphonso Olson · Answer

The correct answer is AThe octet rule state that all main group elements form bonds such that they achieve a noble gas configuration with eight valence electrons. In this case carbon has 4 electrons in its outermost shell  and requires 4 more electrons to achieve an octet. Hydrogen is an exception to the octet rule and it only requires two electrons to achieve an octet. All the other options have C and H  forming bonds that do not lead to a noble gas configuration.

Alphonso Olson · Answer

The correct Lewis structure is D)Explanation:The Lewis structure always has to represent the electrons of the most external level of the atom, also called valence electrons. These electrons will be involved in an eventual chemical reaction.In this case the only correct answer is the structure of N which has 5 electrons on its most external level.

Alphonso Olson · Answer

Answer with pictures

Lori Robel

Which is the correct lewis dot structure of nh2-?

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