Description : The number of electrons present in the valence shell of carbon of `CH_(3)overset(+)(C)H_(2)` ion bearing `+ve` charge:
Last Answer : The number of electrons present in the valence shell of carbon of `CH_(3)overset(+)(C)H_(2)` ion bearing `+ve` charge: A. 8 B. 7 C. 6 D. 4
Description : From the elements: Cl, Br, F, O, Al, C, Li, Cs and Xe; choose the following: (a) The element with highest negative electron gain enthalpy. (b) The element with lowest ionization enthalpy. ( ... . (f)The element which belongs to zero group. (g) The elements which forms largest number of compounds.
Last Answer : Ans. (a). The element chlorine (Cl) has the highest negative electron gain enthalpy. (b). The element cesium (Cs) has lowest ionization enthalpy. (c). The element fluorine F has lowest atomic radius. (d ... zero group (or group 18). (g). The element carbon (C) forms the largest number of compounds.
Description : The pair of electrons in the given carbanion, `CH_(3)C-=C^(Theta)` is present in which of the following orbitals?
Last Answer : The pair of electrons in the given carbanion, `CH_(3)C-=C^(Theta)` is present in which of the following orbitals? A. ... ` B. `sp^(2)` C. `2p` D. `sp`
Description : How many electrons are in the valence shell of I in IF4-?
Last Answer : Need answer
Description : Valence electrons are the electrons found on the last shell of an atom true or fase?
Last Answer : TRUE
Description : Electrons which are free to move around are also called A. conduction electrons B. valence shell electrons C. inner electrons D. electron sea
Last Answer : conduction electrons
Description : Which one of the following elements has valence electrons in the n = 3 shell? A beryllium B oxygen C silicon D neon E hydrogen
Last Answer : C silicon
Description : How many electrons are there in the valence shell of the O2– ion? A 2 B 8 C 10 D 16 E 18
Last Answer : B 8
Description : How many electrons are there in the valence shell of a calcium atom?
Last Answer : ANSWER: 2
Description : Intrinsic semiconductor material is characterized by a valence shell of how many electrons? a) 1 b) 2 c) 4 d) 6
Last Answer : Intrinsic semiconductor material is characterized by a valence shell of 4 electrons.
Description : Which statement is correct? (a) Energy is released when a bond breaks. (b) A sigma bond results from attraction of protons and electrons. (c) Energy is released when a bond forms. (d) A carbanion is positively charged
Last Answer : Energy is released when a bond forms
Description : What is the importance about carbon having 4 valence electrons?
Last Answer : Carbon forms a huge number of compounds.
Description : In molecule of calcium sulfide calcium has two valence electron bonds and a sulfur atom has six valence electrons. How many lone pairs of electrons are present in the Lewis structure of calcium?
Last Answer : What is the answer ?
Description : Carbon atom in methyl carbocation and methyl carbanion is _____ and ______ hybridised :
Last Answer : Carbon atom in methyl carbocation and methyl carbanion is _____ and ______ hybridised : A. `sp,sp^(2)` B. `sp^(3),sp ... 3),sp^(2)` D. `sp^(2),sp^(3)`
Description : What is the name given for a species that contains a positively charged carbon atom? (a) carbanion (b) carbocation (c) methyl radical (d) free radical
Last Answer : carbanion
Description : Homolytic fission of covalent bond between carbon atoms will produce : (a) Two carbonium ions (b) Two molecules (c) Free radicals (d) Carbonium ion and carbanion
Last Answer : Free radicals
Description : Total no. of vacant orbitals in valence shell of sulphur when it undergoes formation of `SF_(4)` :-
Last Answer : Total no. of vacant orbitals in valence shell of sulphur when it undergoes formation of `SF_(4)` :- A. 5 B. 4 C. 3 D. 2
Description : The emission of beta particle is from A)The valence shell of an atom B)The inner shell of an atom C)The nucleus due to the nuclear conversion `:` Prot
Last Answer : The emission of beta particle is from A)The valence shell of an atom B)The inner shell of ... to the nuclear conversion neutron `to` proton + electron
Description : The valence shell configuration of noble gases (except He) is
Last Answer : The valence shell configuration of noble gases (except He) is A. `ns^(2)np^(4)` B. `ns^(2)np^(1)` C. `ns^(2)np^(6)` D. `ns^(2)np^(6)nd^(10)`
Description : If the valence shell electronic configuration of an element is 3s^2 3p^1, in which block of the periodic table is it placed?
Last Answer : If the valence shell electronic configuration of an element is 3s2 3p1, in which block of the periodic table is it placed?
Description : If the valence shell electronic configuration is ns^2 np^5, the element will belong to :
Last Answer : If the valence shell electronic configuration is ns2 np5, the element will belong to : a. ... halogens c. alkaline earth metals d. actinides
Description : The group which has completely filled valence shell is
Last Answer : eighteen.
Description : The total number of electrons present in `4^"th"` shell of Astatatine (`._85At`) are:
Last Answer : The total number of electrons present in `4^"th"` shell of Astatatine (`._85At`) are:
Description : Which of the following is the maximum number of electrons that can be present in M-shell? (1) 2 (2) 8 (3) 18 (4) 32
Last Answer : 18
Description : The electrons present in the outmost shell of an atom is called?
Last Answer : Valence electrons
Description : What are the valence electrons? For s-block and p-block elements show that number of valence electrons is equal to its group number.
Last Answer : What are the valence electrons? For s-block and p-block elements show that number of valence electrons is equal to its group number.
Description : What is the number of valence of electrons of strontium?
Last Answer : 2
Description : How many number of valence electrons are there in a sulphide ion?
Last Answer : The sulfide ion is S^2-, so it has 2 additional valenceelectrons compared to neutral sulfur. Neutral sulfur has 6 valenceelectrons, so sulfide ion would have 8 valence electrons.
Description : What is the number of valence electrons for Sn?
Last Answer : Tin has four valence electrons.
Description : What is the number of valence electrons for Ga?
Last Answer : Gallium has three valence electrons.
Description : Do elements in the same family have the same number of valence electrons?
Last Answer : Yes, this is a general rule.
Description : Atoms of different elements have - (1) same atomic number and same electronic configuration (2) different atomic number and same eletronic configuration (3) different atomic number and different number of valence electrons (4) same number of electrons and neutrons
Last Answer : (3) different atomic number and different number of valence electrons Explanation: Each element's atoms have a different number of protons, neutrons, and electrons, which is why they have different ... Their reactivity also varies because of the number and activeness of the electrons in the atom.
Description : How many valence electrons does an atom of an element with an atomic number of twelve have?
Last Answer : ANSWER: TWO
Description : Atoms of different elements have (1) same atomic number and same electronic configuration (2) different atomic number and same eletronic configu-ration (3) different atomic number and different number of valence electrons (4) same number of electrons and neutrons
Last Answer : different atomic number and different number of valence electrons
Description : What are the number of valence electrons of atoms in semiconductor?
Last Answer : There are four valence electrons in the atom of a semiconductor.
Description : Positron (+ve charge) was discovered by?
Last Answer : Carl Anderson
Description : Nucleus(+ve charge)was discovered by?
Last Answer : Ernest Rutherford
Description : Proton (+ve charge) was discovered by?
Description : Electron (-ve charge) was discovered by?
Last Answer : J.J. Thomson
Description : Depletion region carries _________ (a) +ve charge (b) –ve charge (c) no charge (d) all of above
Last Answer : (c) no charge
Description : The electric field exist around: (a) Charges (b) On the left side (c) At the –ve charge (d) At the +ve charge
Last Answer : (a) Charges
Description : A substance contains: (a) Only positive charge (b) Only negative charge (c) Both +ve and −ve charge (d) None of above
Last Answer : (c) Both +ve and −ve charge
Description : Difference between Valency and Valence electrons ? -Chemistry
Last Answer : 1 ) Valency : The ability to gain, loose and sharing of electrons is valency / combinig capacity atoms of other elements is valency. 2 ) Valence elctrons : Electrons present in the outermost shell of the atom is valence electrons.
Description : Five valence electrons of `.^(15)P` re labelled as If the spin quantum numbers of B and Z is `+(1)/(2)`, the group of electron with three of the quant
Last Answer : Five valence electrons of `.^(15)P` re labelled as If the spin quantum numbers of B and Z is `+(1)/(2)`, ... A. AB,XYZ,BY B. AB C. XYZ,AZ D. AB,XYZ
Description : s-1: `[MnCl_(6)]^(3),[FeF_(6)]^(3-)` and `[CoF_(6)]^(-3)` are paramagnetic having four, five and four unpaired electrons respectively. S-2: Valence bo
Last Answer : s-1: `[MnCl_(6)]^(3),[FeF_(6)]^(3-)` and `[CoF_(6)]^(-3)` are paramagnetic having four, five and ... onn the metal ion. A. TTT B. TFT C. FTF D. TFF
Description : The rays are given off by a radioactive element from A)Nucleus B)Valence electrons C)All the orbits D)Outer orbit
Last Answer : The rays are given off by a radioactive element from A)Nucleus B)Valence electrons C)All the orbits ... electrons C. all the orbits D. outer orbit
Description : What is total valence electrons in NH4?
Description : How many valence electrons are in each energy level?
Description : How many valence electrons does magnesium (Mg) have?
Description : How many shells and valence electrons does krypton have?