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In the of the following pairs of molecules /ions both the species are not likely to exist?
In the of the following pairs of molecules /ions both the species are not likely to exist?
In the of the following pairs of molecules /ions both the species are not likely to exist?
Identify a molecule which does not exist. [1]
Khareedo DN Pro and dekho sari videos bina kisi ad ki rukaavat ke!. An ionic compound A+B− is most likely to be formed when :
Which among the group-15 elements does not exists as tetra atomic molecule ?. Which among the group -15 elements does NOT exists as tetra atomic molecule?
निम्नलिखित में से कौन आण्विक कक्षक सिद्धान्त के अनुसार अणु का अस्तित्व नहीं होता है. Which of the following molecule(s) does not have existence?
3.2: Ions [2]
Most atoms do not have eight electrons in their valence electron shell. Some atoms have only a few electrons in their outer shell, while some atoms lack only one or two electrons to have an octet
Atoms that lose electrons acquire a positive charge as a result because they are left with fewer negatively charged electrons to balance the positive charges of the protons in the nucleus. Most metals become cations when they make ionic compounds.
When these atoms gain electrons, they acquire a negative charge because they now possess more electrons than protons. Most nonmetals become anions when they make ionic compounds.
ions, both the species are not likely to exist? [3]
In which of the following pairs of molecules/ions, both the species are not likely to exist?. if B.O is zero (or) fractional, then the molecule can’t exist in nature.
In which of the following pairs of molecules [4]
In which of the following pairs of molecules/ions both the species are not likely to exist?. Learn from their 1-to-1 discussion with Filo tutors.
Chemistry tutors are online who are ready to help you right now.. Practice questions from New Pattern JEE Problems Chemistry for JEE Main and Advance( Master Problem Package) (Arihant)
Practice questions on similar concepts asked by Filo students. In which of the following pairs of molecules/ions both the species are not likely to exist?
In which of the following pairs of molecules\/ions both the species are not likely to exist?a.) \\[\\] ${{H}_{2}}^{-},H{{e}_{2}}^{2-}$b.) ${{H}_{2}}^{2+},H{{e}_{2}}^{{}}$c.) ${{H}_{2}}^{-},H{{e}_{2}}^ [5]
In which of the following pairs of molecules/ions both the species are not likely to exist?. Hint: When two atomic orbitals combine they form two new molecular orbitals, one by the additive effect of the atomic orbitals which is called the bonding molecular orbital and the other is formed by the subtractive effect of the atomic orbital which is known as the antibonding molecular orbitals.
Electronic configuration of hydrogen atom ${{H}_{2}}^{-}$ (Z of hydrogen= 1) total electrons 2+1 = 3. Bond order is defined as the difference between the number of bonding and antibonding molecular orbital.
\[\sigma 1{{s}^{2}}{{\sigma }^{*}}1{{s}^{2}}\sigma 2{{s}^{2}}\]. Electronic configuration of hydrogen atom ${{H}_{2}}^{2+}$ (Z of hydrogen= 1) total electrons 2-2 = 0
In which of the following pairs of molecules/ions both the spec-Turito [6]
In which of the following pairs of molecules/ions both the species are not likely to exist?. On heating one end of a piece of a metal the other end becomes hot because of
Covalency of carbon in the molecule is three because. Covalency of carbon in the molecule is three because
The angle between the bonding orbitals of a molecule with zero dipole moment is. has a shape of trigonal bipyramid whereas has the shape of a square pyramid
Free Flashcards about Chemistry [7]
|The electron dot formula for carbon dioxide, CO2, is 21) A) B) C) D)||D|. |All of the following species are isoelectronic to Mg2+ EXCEPT A) Na+
D) the number and arrangement of their electrons.||D|. |Which of the following molecules is NOT likely to exist? A) He2 B) CCl4 C) F2 D) N2||A|
|When magnesium reacts with chlorine, magnesium ions, Mg2+, and chloride ions, Cl-, are formed. |With respect to chemical bonding, which particles play the least active role? A) nucleons B) valence electrons C) core electrons D) All play equal roles.||A|
A pair in which both species are not likely to exist is: 1.H2+,He22- 2.H2-,He22+ 3.H22+,He2 4.H2-,He22+ Chemical Bonding and Molecular Structure Inorganic Chemistry NEET Practice Questions, MCQs, Past [8]
A pair in which both species are not likely to exist is:. Prefer Books for Question Practice? Get NEETprep’s Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram BotNEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
Prefer Books for Question Practice? Get NEETprep’s Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram BotNEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology. Prefer Books for Question Practice? Get NEETprep’s Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram BotNEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
Which molecule is least likely to form hydrogen bonds?. Prefer Books for Question Practice? Get NEETprep’s Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram BotNEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
Between CH 3 and CH 4 which molecule is more likely exist in nature needs to be determined. Concept introduction: All noble gases have full octet valence shell electronic configurations. Therefore, th [9]
Between CH3 and CH4 which molecule is more likely exist in nature needs to be determined.. All noble gases have full octet valence shell electronic configurations
All the other atoms or molecule try to gain its neighboring noble gas like configuration.. Octet rule: A molecule will form a stable arrangement when it has 8 valence electrons by gaining its neighboring noble gas like configuration
Again Hydrogen has only so, the number of valence electron is also 1.. The total number of valence electrons in the CH3 molecule is
ions, both the species are not likely exist? from Chemistry Chemical Bonding and Molecular Structure Class 11 Manipur Board [10]
Which of the following exists as covalent crystals in the solid state?. The species in which the N atom is in a state of sp hybridization is:
In which of the following pairs of molecules/ions, both the species are not likely exist?. species which have zero or negative bond order does not exist.
Since, all the three species have each 10 electrons hence they are isoelectronic species.. It is considered that, in case of isoelectronic species as the negative charge increase, ionic radii increase and therefore the value of ionic radii are
9.8: Molecular-Orbital Theory Does not Predict a Stable Diatomic Helium Molecule [11]
9.8: Molecular-Orbital Theory Does not Predict a Stable Diatomic Helium Molecule. – Using bond order as a metric for the existance of molecules
Within the molecular orbital approach, bond order is defined as one-half the net number of bonding electrons:. \[ \text{bond order}=\dfrac{\text{number of bonding electrons} – \text{number of antibonding electrons}}{2} \label{9.8.1} \]
\[ \text{bond order}=\dfrac{2-0}{2}=1 \label{9.8.2} \]. This result corresponds to the single covalent bond; double and triple bonds contain four or six electrons, respectively, and correspond to bond orders of 2 and 3.
Sources
- https://www.doubtnut.com/question-answer-chemistry/identify-a-molecule-which-does-not-exist-645336053#:~:text=The%20bond%20order%20comes%20out,He%2C%20molecule%20does%20not%20exist.
- https://chem.libretexts.org/Courses/University_of_Illinois_Springfield/UIS%3A_CHE_124_(Morsch_and_Andrews)/Book%3A_The_Basics_of_GOB_Chemistry_(Ball_et_al.)/03%3A_Ionic_Bonding_and_Simple_Ionic_Compounds/3.2%3A_Ions#:~:text=2%3A%20The%20Formation%20of%20a,and%20has%20a%201%E2%88%92%20charge.
- https://infinitylearn.com/questions/chemistry/which-following-pairs-moleculesions-both-species-are-not-1642939575
- https://askfilo.com/chemistry-question-answers/in-which-of-the-following-pairs-of-moleculesions-both-the-species-are-not-likely-152810
- https://www.vedantu.com/question-answer/in-which-of-the-following-pairs-of-moleculesions-class-11-chemistry-cbse-5f9f026cf1ba77035fdf7045
- https://www.turito.com/ask-a-doubt/Chemistry-in-which-of-the-following-pairs-of-molecules-ions-both-the-species-are-not-likely-to-exist-h-2-2-he-2-q52cd94e6
- https://www.studystack.com/flashcard-1979600
- https://www.neetprep.com/question/143694-Pair-species-not-likely-exist-isHHeHHeHHeHHe/238-Inorganic-Chemistry/648-Chemical-Bonding-Molecular-Structure?courseId=55
- https://www.bartleby.com/solution-answer/chapter-u25-problem-9e-living-by-chemistry-first-edition-textbook-1st-edition/9781559539418/103d9afd-cbe9-4573-9a1d-b4b37e0a06e1
- https://www.zigya.com/study/book?class=11&board=bsem&subject=Chemistry&book=Chemistry+Part+I&chapter=Chemical+Bonding+and+Molecular+Structure&q_type=&q_topic=Bond+Parameters+&q_category=E&question_id=CHENJE11144523
- https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Physical_Chemistry_(LibreTexts)/09%3A_Chemical_Bonding_in_Diatomic_Molecules/9.08%3A_Molecular-Orbital_Theory_Does_not_Predict_a_Stable_Diatomic_Helium_Molecule
