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How many electrons does pph3 give in the calculation of valence electron counts in the 18 electron rule?
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∙ 16y ago
2 electrons
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∙ 16y ago
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What is the number of valence electrons for H2S?
H:S:H : counts for two electrons that form a bond. ***There are also two electrons (or one bond) above Sulfur and below.All in all, sulfur possess 6 valence electrons while each hydrogen has one valence electron thus, satisfying the octet rule.
Cross and dot structure of chcl3?
C is the central atom. Carbon is single bonded to H and Cl and double bonded to O. Three lone pairs of electrons on Cl and two lone pairs on O. H-C=O:: l :Cl:: In CHClO there are 18 valence electrons that can be found by looking at their Group A# (4=carbon, 1=Hydrogen,7=Chlorine, 6=Oxygen) Each loan pair counts as 2 and each bond counts as 2, so when the equation is completed, count up how many electrons to make sure it equals how many valence electrons for all the atoms (18). _____________________________________________________________ The following original solution is incorrect because Hydrogen can not make more than one bond and can not exceed 2 electrons, EVER. Also for future notes, Chlorine can not make more than one bond either. Furthermore, no atom can exceed 8 electrons due to the octet rule. _________________________________________ The central atom is C making the structure look like :O: .. H-C-Cl: '' The central atom is C making the structure look like :O: .. H-C-Cl: '' The original solution is correct, the formatting was just messed up. Cl bonds to carbon instead of H like the formatting makes it look like. Carbon is in the middle with single bond between it and Cl and H. There is a double bond between C and O. H has no unbonded electrons (it only needs two and gets both from the bond). Cl gets two electrons from the bond and has three unbonded electron pairs. O gets four electrons from its double bond and has two unbonded electron pairs. Carbon gets all its electrons from its bonds.
How do atoms fill their outer energy cells?
There are several ways: First, the atom can from a covalent bond with another atom. This means that the two atoms "share" some of their electrons, and the electrons "count" towards the shell of both atoms. For instance, hydrogen, which has 1 electron and needs two to fill its shell, could share an electron pair with chlorine, which has 7 electrons and needs 8 to fill its shell, thus giving both atoms full outer shells Second, the atom could become a negative ion. This entails it pulling an electron off another atom and into its own shell. This is most common when atoms need only one or two electrons to fill their shell, giving us -1 and -2 ions (an electron counts as -1), though higher numbers are not impossible. Note also that since the atom that got they electron has a negative charge and the atom that lost it now has a positive charge, they tend to stick together in an ionic bond.
The volume of matter comes mostly from its?
Both, while electrons make up the most of the shell that counts as volume for matter electrons still require protons to keep them in stable orbit. But in short yes it is the electrons. Alex PH
What are elements made out of?
There are three types of particle you will find inside an atom; the proton, the neutron, and the electron. Of these, the proton and neutron each have mass '1', and the electrons mass is so small, we usually ignore it (about 1/1836, if you were wondering). Of these particles, the electron and the proton are both charged. The proton has a positive charge, and the electron has a negative charge. This is what keeps the electrons close, and this charge allows atoms to bond together to form molecules. The protons and neutrons form a stable nucleus, and the electrons orbit around them.
When are proton counts and electron counts not equal?
Ions have an imbalance of charge, with either an excess or shortage of electrons.
What is the number of valence electrons for H2S?
H:S:H : counts for two electrons that form a bond. ***There are also two electrons (or one bond) above Sulfur and below.All in all, sulfur possess 6 valence electrons while each hydrogen has one valence electron thus, satisfying the octet rule.
How can you determined the number of valance electrons by looking at the periodic table?
Elements are located on the periodic table based off of their atomic number, but the vertical columns they are in (groups) show how many valence electrons they have. If an element were in Group 3 of the periodic table, it would have 3 valence electrons, and so on. This doesn't apply to the Transition Metals, so one should skip straight to Group 14, where the elements all have 4 valence electrons. Group 15 has 5, Group 16, 6, etc. The one exception to this is Helium, which is in Group 18 but only has 2.
How do you count the electrons in a Lewis dot structure?
Count the electrons in the following way: -- each lone pair counts as 2 electrons -- each single bond counts as 2 electrons -- each double bound counts as 4 electrons -- each triple bond counts as 6 electons. -- if it an ion with a positive charge, subtract 1 electron for each charge from the total (after counting all the bonds and lone pairs) -- if it an ion with a negative charge, add 1 electron for each charge to the total (after counting all the bonds and lone pairs) Add up all the contributions for the total number of electrons!
When are proton counts and electrons counts not equal?
Ions have an imbalance of charge, with either an excess or shortage of electrons.
When are proton counts and electrons count not equal?
Ions have an imbalance of charge, with either an excess or shortage of electrons.
Cross and dot structure of chcl3?
C is the central atom. Carbon is single bonded to H and Cl and double bonded to O. Three lone pairs of electrons on Cl and two lone pairs on O. H-C=O:: l :Cl:: In CHClO there are 18 valence electrons that can be found by looking at their Group A# (4=carbon, 1=Hydrogen,7=Chlorine, 6=Oxygen) Each loan pair counts as 2 and each bond counts as 2, so when the equation is completed, count up how many electrons to make sure it equals how many valence electrons for all the atoms (18). _____________________________________________________________ The following original solution is incorrect because Hydrogen can not make more than one bond and can not exceed 2 electrons, EVER. Also for future notes, Chlorine can not make more than one bond either. Furthermore, no atom can exceed 8 electrons due to the octet rule. _________________________________________ The central atom is C making the structure look like :O: .. H-C-Cl: '' The central atom is C making the structure look like :O: .. H-C-Cl: '' The original solution is correct, the formatting was just messed up. Cl bonds to carbon instead of H like the formatting makes it look like. Carbon is in the middle with single bond between it and Cl and H. There is a double bond between C and O. H has no unbonded electrons (it only needs two and gets both from the bond). Cl gets two electrons from the bond and has three unbonded electron pairs. O gets four electrons from its double bond and has two unbonded electron pairs. Carbon gets all its electrons from its bonds.
How do atoms fill their outer energy cells?
There are several ways: First, the atom can from a covalent bond with another atom. This means that the two atoms "share" some of their electrons, and the electrons "count" towards the shell of both atoms. For instance, hydrogen, which has 1 electron and needs two to fill its shell, could share an electron pair with chlorine, which has 7 electrons and needs 8 to fill its shell, thus giving both atoms full outer shells Second, the atom could become a negative ion. This entails it pulling an electron off another atom and into its own shell. This is most common when atoms need only one or two electrons to fill their shell, giving us -1 and -2 ions (an electron counts as -1), though higher numbers are not impossible. Note also that since the atom that got they electron has a negative charge and the atom that lost it now has a positive charge, they tend to stick together in an ionic bond.
The volume of matter comes mostly from its?
Both, while electrons make up the most of the shell that counts as volume for matter electrons still require protons to keep them in stable orbit. But in short yes it is the electrons. Alex PH
What is the hybridization of oxygen?
SP2 because there are 6 electrons off of oxygen, and each pair counts as "one" when calculating hybridization.
What are elements made out of?
There are three types of particle you will find inside an atom; the proton, the neutron, and the electron. Of these, the proton and neutron each have mass '1', and the electrons mass is so small, we usually ignore it (about 1/1836, if you were wondering). Of these particles, the electron and the proton are both charged. The proton has a positive charge, and the electron has a negative charge. This is what keeps the electrons close, and this charge allows atoms to bond together to form molecules. The protons and neutrons form a stable nucleus, and the electrons orbit around them.
How you find Effective atomic number of coordinate compounds?
effective atomic number (EAN),number that represents the total number of electrons surrounding the nucleus of a metal atom in a metal complex. It is composed of the metal atom's electrons and the bonding electrons from the surrounding electron-donating atoms and molecules. Thus the effective atomic number of the cobalt atom in the complex [Co(NH3)6]3+ is 36, the sum of the number of electrons in the trivalent cobalt ion (24) and the number of bonding electrons from six surrounding ammonia molecules, each of which contributes an electron pair (2 × 6 =12).The English chemist Nevil V. Sidgwick made the observation, since known as the EAN rule, that in a number of metal complexes the metal atom tends to surround itself with sufficient ligands that the resulting effective atomic number is numerically equal to the atomic number of the noble-gas element found in the same period in which the metal is situated. This rule seems to hold for most of the metal complexes with carbon monoxide, the metal carbonyls as well as manyorganometallic compounds. By using this rule it is possible to predict the number of ligands in these types of compounds and also the products of their reactions. The EAN rule is often referred to as the "18-electron rule" since, if one counts only valence electrons (6 for Co3+ and 2 × 6 = 12 for 6 NH3), the total number is 18.
