Pt^2+orbital filling diagram

Q: 16. Calculate wavelength of the photon emitted upon n=2 to n=1 electronic transition in helium…

A: Wavenumber of the photon emitted can be determined using Rydberg equation as follows,

Q: The number of nearest-neighbor atoms of an atom is called its O a. sequence number O b. system…

A: We need to tell in the question about what we called  to the number of surrounding atoms to the…

Q: Place the following in order of increasing radius. Br Na+ Rb+

A: The radius of an ion depends on its charge. A negative charge on an ion increases the repulsion…

Q: what are the number of unpaired electrons present in Cr^2+,  Fe^3+,  Co^2+ ?

A: The electron configuration of Cr is 1s2 2s2 2p6 3s2 3p6 4s1 3d5.  Removal of two electrons results…

Q: This halogen is the only liquid non-metal. Group of answer choices A. Bi B. Br C. Ba D. Be E. B

A: Halogen elements are  F -> Fluorine  Cl -> Chlorine  Br -> Bromine  I -> Iodine  At…

Q: 2a e 6. Normalize 2pz orbital a. cos e

A:

Q: 44. What is the shape of the orbitals of actinides? Dumbbell Spherical O Clover-leaf Complex

A:

Q: Which of the following ions is paramagnetic? Select one: 2+ а. Zn 2+ b. Ca 3+ O, C. Sc 2+ d. Zr

A: If electron is paired then diamagnetic. If electron is not paired then paramagnetic.

Q: In the Fe2+ ion, how many unpaired d electrons are there?

A: The atomic number of Fe is 26  Hence the electron configuration of Fe is [Ar] 3d6 4s2

Q: Calculate the number of unpaired electrons in [Fe(NH3)6]3*.

A: Solution-Fe(NH3)63+-Fe3+ =3d5= valency electronsan NH3 is strong field ligand pairing accured.   3d5…

Q: ) Cirele the ions with the 4s orbitals empty? Sc Tit Cr Mn

A: The electronic configuration of the given ions are: Sc :[Ar] 3d14s2Sc3+ : [Ar]Ti :[Ar] 3d24s2Ti4+:…

Q: X-ray diffractometers often use metals that have had their core electrons excited as a source of…

A: X-ray diffraction: X-ray diffraction technique is used to determine the structure of a solid…

Q: How many unpaired electrons does [Cr(OH2)6]2+ have when it has a highspin d electron configuration?

A:

Q: How many unpaired electrons would be present on a Be2 2− ion? Would it be paramagnetic or…

A: On Be2 2- ion,there will be two unpaired electrons in the molecular orbitals.As there are two…

Q: How many unpaired electrons are in [Mn(NH3)6]3+

A: Given complex -ion is  [Mn(NH3)6]+3 The metal ion is Mn+3  so Electronic configuration is Mn ⇒[As]…

Q: 9.5 x 10^8 Cu2+ + 4NH3 [Cu(NH3)4]2+ , K ==> = 4.5 x 10^11 %3D Cu2+ + 2en ==> [Cu(en)2]2+ , K = 3.0 x…

A: Applying concept of stability of complexes and dependency of stability at stability constant.

Q: Which of the following has the largest I2? (Transition metals lose their s electrons before the d…

A: The outer shell electronic configuration is: K→ [Ar] 4s1     or [Ne] 3s23p34s1Ca→ [Ar] 4s2Sc→ [Ar]…

Q: What is the correct orbital diagram for the 3d electrons in Fe?

A:

Q: #8 which Chromium Species has the larnest radius A.) Cr B.) Crot Cr3+ D.)Gr 6+ 2.

A: Periodic table represents the systematic arrangement of elements in which the properties of these…

Q: 7. Calculate the radius of a vanadium atom given that V has a BCC crystal structure, a density of…

A: Answer :-  Radius of a Vanadium atom = 0.132 nm…

Q: The d-block element among the following is a. Lead Ob. Thorium O C. Helium d. Osmium

A:

Q: 8. The density of nickel is 8.908 g/cm3. If the metallic radius of nickel is 125 pm, what is the…

A: Concept  n= 1 then Simple cubic structure n= 2 then Body centered structure n = 4 then Face centered…

Q: Indicate whether technetium, Z = 43, would be expected to be paramagnetic. Technetium is not…

A:

Q: hypothetical element, Le, has a body centered cubic structure with a density of 6.12 g/cm3.…

A:

Q: What cations appear in Biotite? K(Mg,Fe)3(AlSi3O10)(F,OH)2 Which cations occur in Biotite that also…

A: Biotite, also known as phlogopite, is a silicate-based minerals. The mineral is classified under…

Q: Fill in the orbital energy diagram for nickel. 3d 4s 3p E 3s AV AV AV 2p 2s 1s The lowest E levels…

A: The filling of atomic orbitals depends on certain factors-   (1) Aufbau principle- filling of…

Q: Which of the following ions is paramagnetic? Select one: 3+ a. Sc 2+ b. Ca 2+ C. Zn 2+ d. Zr

A: The species in which unpaired electron is present is known as paramagnetic. For finding this…

Q: Copper (Cu) has a density of 8.93 g/cm3. If a copper sample has an electrical conductivity of 6.3 x…

A:

Q: Kp %3D II

A:

Q: How many unpaired electrons would you expect for chromium in [Cr(H2O)6]3+? Is this a paramagnetic or…

A: To determine the unpaired electrons, first make the orbital diagram of the transition element…

Q: 5. Which of these two metals will be harder? Explain your choice. Na and Cs

A: Na and Cs are the elements in Alkaline Metals. The factors that affect the hardness are bond…

Q: 1. Aluminum: [Ne] 3s² 3p¹  2. Calcium:  [Ar] 4s² 3.Copper: [Ar] 3d¹⁰ 4s¹   order these based on…

A: Atomic number of Al = 13 , Ca = 20 & Cu = 29  So, atomic number represent in each element is…

Q: Why Mn has lower melting point although it has 5 unpaid electrons in the d orbitals?

A: We know that atomic no. of Mn=25 So it contains 5 electrons in d orbitals and 2 electrons in the s…

Q: Calculate the goniometer setting, in terms of  2q required  to observe the Ka1 lines for Fe (1.76Å),…

A: For Topaz d=1.356 Å For LiF d = 2.014 Å For NaCl d= 2.820 Å

Q: What is the smallest- wavelength (in nm unit) line in the Balmer series? *

A: Wavelength is an important property of a wave which denotes the distance between successive crests…

Q: Tagnesium hitride

A: As it is ionic compound. So name of compound is  magnesium nitride (d) is correct option

Q: Which of the following will be paramagnetic? Multiple Choice V5+ Ni2+ Mn7+

A: To determine whether the ion is Paramagnetic or diamagnetic. We check unpaired electrons. If all the…

Q: Estimate the density of iron that has BCC structure with an atomic radius of .133 nm, and an atomic…

A: Given,  Atomic radius = r = 0.133 nm  Atomic weight = M = 55.58 g/mole  Find density of the solid…

Q: Transition metal X forms X^3+, which has four unpaired electrons. X could be: titanium gallium…

A: Here given, transition metal forms X3+ state. If Ti forms a 3+ state, then it is a 3d1 system, and…

Q: how can you use the periodic table or electron configuration to find out if an element is…

A: All matter can be classified as solid, liquid and gases mainly. In these physical states of matter,…

Q: What makes carbon such a unique element? a. Elemental carbon comes in two forms, diamond, and…

A: Atomic number of carbon is 6.  It's electronic configuration is 1s2,2s2 2p2 Carbon can form four…

Q: a What type of orbital , number of orbital and number of electrons in n 3 Type of orbitals: Number…

A:

Q: -E a.164eV Consider a silicon crystal at 300° K doped with arsenic atoms. Depending on the following…

A: Given: ni= 1.45 x 1010 cm-3 ne= electron concentration , n0 nh=  hole concentration , p0 Temperature…

Q: ... The cell length (short side of the right triangle) is 6.67 Å. What is the length of the long…

A: Given:

Q: Fill in the orbital energy diagram for nickel. 3d 4s 3p E 3s AV 2p 2s 1s The lowest E levels are…

A: According to Aufbau's principle, the electrons are filled in orbitals in the increasing energy level…

Q: 22.) Paramagnetism is a measure of the number of unpaired electrons. Of the following elements, what…

A: Greater the number of unpaired electrons greater will be the paramagnetism

Q: Explain infrared spectrum in detailed analysis.

A: The functional group is a key component associated with a molecule and they control the overall…

Q: Question 10 Which of the following monochromator terms is NOT correctly defined? refraction:…

A: Answer  Which of the following monochromator terms is not correctly…

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.