Which of the following relationships between  ionic radii is not necessarily valid? r(F–) > r(Mg2+) r(Cu2+) > r(Zn2+) r(Na+) > r(Al3+) r(Sr2+) > r(Fe3+) r(S2–) > r(O2–)

Q: The hot glowing gases around the Sun, the corona, can reach millions of degrees Celsius, high enough…

A: There are commonly two main types of magnetism in the compounds. They are paramagnetism and…

Q: Given the following ionic radii: Mn2+ (96 pm), Mn3+ (65 pm), Mn7+ (46 pm), Cl− (181 pm), Cl7+ (27…

A: Given that, Ionic radii of Mn3+  = 65 pm Ionic radii of Cl- = 181 pm We have to find radius ratio…

Q: (ii) Lithium shows a diagonal relationship with magnesium. A) Why are these elements diagonally…

A: Diagonal relationship :    A diagonal relationship is said to exist between certain pairs of…

Q: Arrange the species Cl-1, K+1, s-2 in terms of increasing radii O a. K+1 < CI+1 <S-² O b. S-2 < K+1…

A: Atomic radius of an element represents the distance of the nucleus from the outermost shell. The…

Q: Steel is an alloy containing Fe atoms and C atoms. Which of the following diagrams best represents…

A: Alloy is formed when two or more then two metal or one metal combined with one or two other elements…

Q: Explain each of the following observations: The halogens decrease in oxidizing power in the order F2…

A: Introduction :  Oxidising power of halogens decreases down the group .

Q: Which of the following species is diamagnetic (not paramagnetic): Li, V, Ni, Zn, Fe-

A: Please find the answer attached.

Q: 6. Which has the smaller atomic radii? j. N3 or N k. Cl or CI I. Sr2* or Sr

A: Since you have posted multiple questions, we can answer only first three subparts. To get the…

Q: 11. What is the ground state electron configuration for the Fe2+ ion? а. [Ar] 4s23d4 b. [Ar] 3а6 c.…

A: Atomic radius is defined as the distance from the centre of nucleus to outermost shell of atom.

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: 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: Calculate the radius in nanometers of a metallic atom given that it has a BCC structure and a…

A: Given information, Density (d) = 11.66 g/cm3 Atomic weight (M) = 104 g/mol NA = 6.022*1023 atoms/mol…

Q: Which element has the electron configuration 1s²2s²2p⁶3s²3p⁶4s²3d⁵?

A: Total number of electrons =( 2+2+6+2+6+2+5 )  = 25 We know that, Atomic number = number of protons…

Q: 16. The ion with the smallest diameter is a) Br b) CI - d) F e) 02-

A: Hi, since you have posted multiple question, we will answer the first question for you. Kindly…

Q: Which transition-metal ion with a 3+ charge has the electron configuration [Kr]4d?

A: Transition metal atom and ions are those elements which lie in between s and p block elements and…

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

A:

Q: Which of the following is paramagnetic?  Z of Sr= 38,  Ca=20,   I = 53,  Mn = 55 a.I - b.Ca c.Sr+2…

A: Paramagnetic species contains unpaired electrons.

Q: Which of the following ions has the electron configuration 1s22s22p°? A) Mg* B) N2 C) N3 D) O E) F*

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: A metal ion with a term symbol 3D has а. L= 2 and S = 1 b. L= 3 and S = 1 С. L= 2 and S = 2 d. L= 1…

A: The general formula used to describe the atomic term is 2S+1L in which S is the multiplicity and L…

Q: Use periodic trends and predict which of the following ions has the smallest radius. Ca2+  Cl-  K+…

A:

Q: Explain why actinides are colourful (5)

A:

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

A: The element which has partially filled d orbital and is present in group 3 to 11 in the periodic…

Q: Which of the following ions are diamagnetic? N2*, 022, Be,, 02 Select one: 2+ O N2*, 02 O 0,2-…

A: The molecular orbital configuration can be written as follows: O22-…

Q: (ii) Lithium shows a diagonal relationship with magnesium, A) Why are these elements diagonally…

A: A.Following are the main reason of diagonal relationship shown by Li and Mg.

Q: The Ionic radius of Li+ is close to the ionic radius of A) Na+ B) Be 2+ C) Mg 2+ D) Al 3+

A: The distance from the nucleus of an ion up to which it has an influence on its electron cloud is…

Q: Place the following in order of increasing radius. Ca, Ca2+, S2-, Cl-

A: In this question, we want to place these all species in Increasing radius.  You can see details…

Q: Atomic radius is usually inferred from crystallographic data on elemental solids and is a crude…

A: The radius data given is, Li : 0.152 nm Be: 0.113 nm B: 0.088 nm C: 0.077 nm N: 0.075 nm O: 0.066 nm…

Q: Cobalt (Co) is a paramagnetic element.  Explain what makes an element paramagnetic?      Give the…

A: A species that has unpair electrons in its orbital.then that element is called  paramagnetic…

Q: . Calculate the planar density of a BCC element if the radius is 0.125 nm. 7. Calculate the linear…

A: The BCC lattice has total 2 atoms present in the unit cell; 8 atoms in the corner and 1 in the…

Q: Question attached

A: Within a period, protons are added to the nucleus as electrons are being added to the same principal…

Q: Which items from the following list are diamagnetic? Mg, Mo, Si , Hg

A: in outermost shell orbitals contains. Unpaired electrons exhibit paramagnetism Atom or ion with All…

Q: 3. In each pairing, pick the species with the larger radius. Pairing Smaller radius Explanation Rb…

A: The radius for an ion depends on the number of protons holding the number of electrons,

Q: (a) What trends, if any, exist for Z(eff )across a period and downa group? (b) How does Z(eff)…

A: Z(eff) is the net attractive force exerted by the nucleus on the valence electrons.

Q: Which of the following species is diamagnetic (not paramagnetic): Li, V, Ni, Zn, Fe2+ hon H. Не…

A: The species which has no unpaired electron that is diamagnetic.for this we should understand…

Q: (v) n=6, t= 3, m, = +% من إجمالي 5 (e) Give the ground-state electron configuration for each of…

A: Since you have asked multiple question, we will solve the first question for you.If you want any…

Q: -. Draw a Moseley plot for the L. X-rays using the following energies in ke V: Mn 0.721 Rh 2.89 Zn…

A: I've solved for K beta value of spectral line having certain a and b value. You do the same with the…

Q: 15. Explain carefully why cesium tends only to form a +1 ion?

A: Introduction: We have to tell why cesium shows +1.

Q: Consider the following ionization energies for aluminum : Al (g) → Al+ (g)  + e- I1 = 580 kJ/mol…

A: Given: Al (g) → Al+ (g)  + e- I1 = 580 kJ/mol Al+(g) → Al2+ (g) + e- I2 = 1815 kJ/mol Al2+(g) → Al…

Q: Which of the following species is diamagnetic (not paramagnetic): Li, V, Ni, Zn, Fe²+ H Не yen 10 Li…

A: the species which has no unpaired electron that is diamagnetic.for this we should understand…

Q: Which arrangement is in the correct order of increasing radii? Select one: a. Cs < Mn2+ < Mn b. Ra…

A:

Q: 0OMEA Ot the elements below iS Smaller than Ca but larger than As ? Br P Mn what is the valence…

A: Using concept of periodic properties of elements.

Q: what is the electron configuration below?    1s22s22p63s23p5

A: According to Bohr’s model of an atom electrons are present in orbitals having specific energy. These…

Q: Which metal ion is expected to have the electron configuration, 1s? 2s? 2p6 3s2 3p6 3d10 4s² 4p6 4d4…

A: To identify the metal ion that is expected to have below electronic configuration…

Q: which of the following ion is paramagnetic and coloured in nature: a  Cu^2+ b  Cu^+  c  Zn^2+ d…

A: The paramagnetic compounds or atoms or ions have unpaired electrons and are attracted towards the…

Q: Which of the following species has the 'largest' radius:  Ti2+, V3+, Ca+2, Br-, Cl-       Select…

A:

Q: Choose the option in each that has the desired characteristic. Briefly explain each of your choices.…

A: The Si will be larger in size as the size decreases when we go right in the given period. It is…

Q: 8. Which of the following atom is paramagnetic? C. Calcium D. Potassium A. Zinc В. Кгуpton

A: Paramagnetism, kind of magnetism characteristic of materials weakly attracted by the strong magnet,…