5.26 Å 3.72 A

Q: The trend in second ionization energy for the elements fromlithium to fluorine is not a regular one.…

A: To find: The element which has highest and lowest second ionization energy

Q: Calculate the number of vacancies per cubic meter in gold (Au) at 900°C. The energy for vacancy…

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Q: Consider the first ionization energy of neon and the electronaffinity of fluorine. (a) Write…

A: Ionization energy is the amount of energy which is needed to remove an electron from the neutral…

Q: 1. Show that the mean velocity of an electron in an electron gas at the absolute zero of temperature…

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Q: (a) The measured Bi¬Br bond length in bismuth tribromide,BiBr3, is 2.63 Å. Based on this value and…

A: Hi there, as there are multiple questions posted and to answer question-a, Figure 7.8 is missing.…

Q: Despite the expected decrease in atomic size, there is an un-expected drop in the first ionization…

A: Ionization energy is the energy that is required to remove an electron from a gaseous atom or ion to…

Q: Which of the following has the smallest radius? OF ONe O Mg EN C

A: In the given question we have to find the smallest radius among the following ions and atom.  there…

Q: Why is there an overall contraction in ionic radii? Why is radius of Ti^ 2+ less than theoretical…

A:

Q: 4. Calculate the net energy of Ca2+ and S²- with an inter-atomic separation distance of 1.793nm, if…

A: The force in Newtons between 2 charges q1 & q2 is given by Coulomb's law: F=kq1q2r2k is a…

Q: Describe the relationship betweena. the radius of a cation and that of the atom from which formsb.…

A: a) When the electrons are lost from an atom, it leads to the formation of a cation. This results in…

Q: Soft contact lenses are made of siliconand oxygen atoms bonded together. Create a table listingthe…

A: Contact lenses, also known as eyeglasses, are small lenses that are mounted directly on the surface…

Q: The first element of every group behaves differently from the other elements in the same group.…

A: Lithium shows anomalous behavior because it has the smallest size in the group. Since it has the…

Q: Some sports bottles are made of Lexan, aplastic containing a compound of the elements…

A: Some sports bottles are made of Lexan, a plastic containing a compound of the elements chlorine,…

Q: It is possible to define metallic character as we do in this bookand base it on the reactivity of…

A: First Ionisation Enthalpy of Silver (Ag) is 731 kJ/mol and that of Manganese (Mn) is 717.4 kJ/mol…

Q: 4. What is the ganaral trand for atomic radius as you go down the noble gas farnily?

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

Q: Tungsten has the highest melting point of any metal in theperiodic table: 3422 °C. The distance…

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Q: The ionic substance strontium oxide, SrO, forms from thereaction of strontium metal with molecular…

A: The given question can be solved on the basis of the prior knowledge of the solid-state. a)…

Q: A liquid compound containing only hydrogen and oxygenis placed in a flask. Two electrodes are dipped…

A: The chemical reaction that takes place is shown below.

Q: 20 The generic lonic compound, MX is composed of metal M and gemerie geous halogen X Caleulate its…

A: Lattice energy is the energy released when one mole of an ionic compound is formed from its…

Q: Moseley established the concept of atomic number by studyingX rays emitted by the elements. The X…

A: a.

Q: Write a balanced equation for the reaction that occurs ineach of the following cases: (a) Ozone…

A: (a) Ozone decomposes to dioxygen. The balanced equation of the given reaction is,

Q: Calculate the number of vacancies per cubic meter for some metal, M, at 765°C. The energy for…

A: The number of vacancies per cubic meter for some metal is calculated as,

Q: b. State the physical states of the halogens at room temperature and explain the trend.

A: Halogens are group 17 elements. Halogens are non metals in nature. Halogens are Fluorine, chlorine,…

Q: Explain why potassium and sodium exhibit similarproperties.

A: It is so because both of these elements have similar valence shell electron i.e. ONE.

Q: 4) The dielectric constants of noble gases increase slightly from top to the bottom in the periodic…

A: Noble gases are non polar molecules; hence, electrically neutral.  This is because of symmetrical…

Q: As you move down a family (group) of the periodic table the size of atoms increases from period 2 to…

A: The long form of periodic table is the arrangement of all elements in the increasing order of their…

Q: The contour representation zof one of the orbitals for then = 3 shell of a hydrogen atomis shown…

A: a) The given subshell has a dumbbell shape. Thus it is the 'p' orbital. The azimuthal quantum no.,…

Q: 3. Explain the physical significance of a negative value for AE. Why must Esphoscom always be…

A: Physical significanve of negative value of ΔE:When ΔE is negative, it means that a photon is jumping…

Q: 1. All of the common noble gases are monatomic and low-boiling. Their boiling points in °C are:…

A: The only inter-molecular force present in inert (noble) gases is weakest van der Waals force. It…

Q: Hydrogen is an unusual element because it behaves in someways like the alkali metal elements and in…

A: (a)Electron affinity is the amount of the energy released on the addition of an electron to a…

Q: Please arrange S²², CI", Se², and Br¯ in order of increasing ionic radius.

A: Interpretation -  To arrange the S2- , Cl- , Se2-  and  Br-  in order of increasing ionic radius -…

Q: element cobalt in battery technology? b)What are the physical properties of the element cobalt in…

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Q: O(g) + O(g) → N,(g) + O2(9) also k, «k,. That is, the firs

A: Given chemical equation: Reaction 1: N₂O(g) ----> N₂(g) +O(g) Reaction 2: N₂O(g) + O(g) --->…

Q: The 1st, 2nd, and 3rd ionization energies for magnesium are 738kJ/mol, 1451 kJ/mol and 7733 kJ/mole.…

A: Ionization energy is the amount energy required to remove electron from isolated gaseous atom or…

Q: In some forms of the periodic table, hydrogen is placedin Group I; in others, it is placed in Group…

A: Hydrogen is placed separately in the periodic table.It shows similarities to both group 1 and…

Q: For each of the following pairs of atoms, state which youexpect to have the greater electron…

A: "Since there are multiple sub-parts in this question and it is not mentioned that which one has to…

Q: 11 Define ionization energy OA lonization energy is the energy needed to remove an electron from an…

A: c)ionization energy is needs to remove                electron from an atom on its gaseous phase.…

Q: H.W: In the Boher model of the hydrogen atom an electron moves at 2.19 10'm/s in an orbit of radius…

A: Given: The velocity of the electron in the hydrogen atom(v)=2.19×106m/s The orbital radius of the…

Q: 1. All of the common noble gases are monatomic and low-boiling. Their boiling points in °C are: Ne,…

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Q: Write a balanced equation for the reaction that occurs ineach of the following cases: (a) Cesium is…

A: Balanced equation is that when atoms on both reactants and products side are equal. A chemical…

Q: 4. Given the ionic radii and molar masses of Sc" (0.88 amperes, 45.0 g/mol) and F (1.19 amperes,…

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Q: 5. Placed the elements N, O, As, Se in order from least to greatest atomic radius. a. N<0<As < Se b.…

A: The question is based on the periodicity of elements. we have to arrange the given atoms in…

Q: Place the following elements in order of increasing atomic radius (from the lowest to the highest):…

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Q: 4. The radius of the nucleus of an o radius of the atom is 66 pm. (Vol a. Calculate the vol b.…

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Q: Which of the following has highest radius? A. 1s B. 2p C. 2s D. all are equal

A: