10. Iron has an atomic number of 26 and has an electronic configuration 18² 2s² 2p 3s² 3p6 4s² 3dº. How many d electrons are present in Fe²+? 2 4 8

Q: Which of the following elements will most likely form ions with a –2 charge? a) Cr b) Sr c) Se…

A: Which of the following elements will most likely form ions with a –2 charge?

Q: )Which metal atom below cannot form cations of several different charges? Mn Fe Cr Ba

A: The charge on the cation or anions is known as the oxidation state. The periodic table has metals,…

Q: 9.- Select the chemical process that represents the second ionization of silver. a) Ag(s) → Ag²(g) +…

A: We have to write the chemical process that represents the second ionization of silver.

Q: What is the maximum mass, in kilograms, of scandium metal that can be made from 1230.2kilograms of…

A: First, we need to determine the mass of Sc2O3 in the thortveitite. Given that the thortveitite is…

Q: Why it is possible to determine the charge of monoatomic ions from their position on the periodic…

A: It is fairly easy to work out those for monatomic ions in the s and p blocks of the periodic table.…

Q: Determine the second ionization energy of calcium (in kJ mol-1) from the given data (all in kJ…

A: The data given is,

Q: Magnesium oxide exists as Mg2+ O2- and not as Mg*O. Explain.

A: magnesium has atomic number 12 ,so it's electronic configuration is 2,8,2  having two electrons in…

Q: Which atoms/ions fit the electron configuration? 1s22s22p63s23p64s23d4

A:

Q: . Zn(s) + O2(g)

A: ZnO is formed .

Q: Name the compounds  PbO2 N2O C2H6 Au2Cr2O7 Mn(NO2)2

A: 1) PbO2 ----- This compound contains two elements such as lead (Pb) and oxygen (O). 2) N2O ---- This…

Q: Which of these ions is isoelectronic to the oxide anion O2 ? A) K* B) Mg²* C) CI D) S? E) Pb2*

A: Isoelectronic species can be defined as the species containing the equal number of electrons. Toe…

Q: Which element has an quantum angular moment (L) of 0. O U OS O Mg Fe

A: Quantum numbers is the set of numbers which is used to calculate the energy and position of the…

Q: Using the following thermodynamic data, calculate the lattice enthalpy of lithium oxide: Li(g) →…

A: It is based on the concept of lattice energy  Here we are required to find the lattice energy of…

Q: How is F3O4 the oxide ion of Fe 3+?

A: SOLUTION: Step 1: Fe3O4 is a spinel compound. Spinel means it contains metal ion of 2 oxidation…

Q: III. Gravimetric Factors. Provide the chemical formula in each of the provided line beside the…

A: To determine the Gravimetric factor. Gravimetric Factor = m×Formula weight of substance…

Q: What is the correct name for Sn3(PO4)2 ? O tin(IV) phosphate O tritin diphosphate O tin(Il)…

A: The given compound is Sn3(PO4)2

Q: Write the formula for ruthenium (IV) oxide

A: Chemical formula gives information about the types of element present in that compound.

Q: Which transition metal ion has a noble gas electron configuration? O V5+ O Mn4+ Cu²+ O Zn²+ O CO³+

A: Given, Which transition metal iron has a noble gas electron configuration: V5+ Mn4+ Cu2+ Zn2+ Co3+

Q: 1.Give an example of a one S block element whose valance electrons are in 4th principal quantum…

A:

Q: what is the electron configuration of Cu3+

A: The objective of the question is to determine the electron configuration of a Cu3+ ion.

Q: The Mn7+ Co O Sc7+ O Ni7+ O Cu²+ ion is represented by the electron configuration [Ar]3d².

A: The electronic configuration:   [ Ar ] 3d2

Q: How many F minus ions will one PB+ ion be paired?  2) An Ionic compound has one Al+3 as its cation.…

A: An atoms binds with another atom by following their valency .

Q: [Review Topics] [References] An experiment was run to demonstrate that a dynamic equilibrium exists…

A: Given : special form of Cobalt tetrachloride complex.  To find : structures of equilibrium is not…

Q: Explain why N2 2+ is diamagnetic, while O2 4+, which has the same number of valence electrons, is…

A: The Lewis structure does not give any idea about molecular geometry but it purposed the distribution…

Q: What is peculiar about the cations formed by transition metals and given two examples ?

A: The transition metal cations have several exciting properties which are generally useful for…

Q: Show the electron configuration of each of the following using noble gas spectroscopic ("spdf")…

A: