77 78 79 80 81 Ir Pt Au Hg TI Iridium Platinum Gold Mercury Thallium 192.22 195.08 196.97 200.59 204.38 Which of the following statements is FALSE about the electron capture of gold-195?

Q: Decide which element probably forms a compound with oxygen that has a chemical formula most and…

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Q: Question 3 An element has the following electron configuration: [Ne] 3s² 3p³. How many core and…

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Q: What is the number of oxygen atoms in 10 gm of 02 (O=16) ? * O 3-3.76 *10(23) O 0.625 * 10(23) O…

A: Since you have posted multiple unrelated questions, we are entitled to answer the first only.

Q: What element is represented by 1s22s22p 3s²3p6 0 Kr OS O Sc+3 00 O Br

A: electron configuration is the distribution of electrons of an atom or molecule in atomic or…

Q: emitted when an electron decays from the n=6 to the n=1 energy level?

A: We will use relation with  quantum number and frequency.

Q: From experiments on alpha particle scattering from thin films of gold, the nuclear centers of gold…

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Q: 16. which of the following compounds does not obey the octect rule? a) SiCl, b) XeCla c) PH, d) H,S…

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Q: How many of the electrons in each of the following atoms reside in p orbitals? How many of the…

A: Electronic configuration refers to the arrangement of electrons in an atom or ion within its atomic…

Q: P Question 7 What is the effective nuclear charge for lodine? O +53

A: Here, we have to calculate the effective nuclear charge for iodine.

Q: BONUS: Select all answers that correctly indicate the larger element or ion in the group. The format…

A: The species with equal count of electrons are categorized as isoelectronic species. Due to similar…

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Q: Which sublevel in the second principal quantum number is represented by the following graph?

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Q: Describe the formation of heavier elements during stars' formation and evolutions; Give at least 10…

A: Introduction :  An element is a group of atoms which have same number of protons, in pure form they…

Q: QUESTION 27 Which element has the following electron configuration? 1s2522p63s2 OP 15 Mg 12 Na 11 O…

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Q: Which of the following describes the element Br? Choose all that apply. Oreacts vigorously with…

A: Bromine is a halogen and belongs to group 17 and period 4 of the periodic table. The chemical symbol…

Q: If rubidium has an emission line at 1.28 X 106 m and ng is 3, what is the initial energy level? 6.…

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Q: 9. Spectral lines are shown in the image below. But what are they? Explain how spectral lines are…

A: Each element  have different  spectra due to different number of electrons  in valence  shell.

Q: Elements with predictable ion charges tend to be in which columns? 1) 2A, 3A, 5A, 6A 2) 1A,…

A: As per my assumption it is option- 4 As 1A, 2A show group 1 and 2 of periodic table with charge +1…

Q: Explain the similarities and differences as compared to element 118 Og if a new element was…

A: A question based on periodic trends that is to be accomplished.

Q: 1. The following is an electron transfer reaction between two atoms: Ag + O Ag2+ + 02- ----> Which…

A: The atomic number of Ag (Silver) is 47 . And it's ground state electronic configuration is  […

Q: In what group of the periodic table is the element with the electron configuration [Ar] 4s23d104p3?…

A: Electron configuration =  [Ar] 4s23d104p3We need to write the group name of given electron…

Q: Which of the following metals would be expected to have the smallest atomic radius? A) Cesium (Cs)…

A: In periodic table, on moving left-right the element's electronegativity as well as atomic number…

Q: What quantity of energy in J will remove the outer electron in a 1.00 mg sample of sodium?  IE1 (Na)…

A: Ionization energy is the minimum amount of energy required to remove the most loosely bound electron…

Q: None

A: The order in which the atoms give out alpha particles in a radioactive substance is determined by…

Q: Which of these is lower in energy and why?

A:

Q: Write the atomic configuration of these elements. w solution K - 19 Sb - 51 U – 92 Sample below

A: Atomic configuration of an element represents the electron filling in each orbit.

Q: Write the atomic configuration of these elements. w solution Cu-29 Xe – 54 U – 92

A: Cu means copper. It has 29 electrons in it. According to aufbau principle - the lower energy levels…

Q: There should be 10.07 x 7.395 2.5x0.08 significant figures in the answer to the following…

A: During multiplication and division,  the result is reported in the minimum number of significant…

Q: What species is represented by the following information? p = 17 n = 18 e = 18

A: The answer to the following question is-

Q: How much energy does an electron need to absorb in order to go from n=1 to  n=5?  (k=2.179*10-18J)

A: When an electronic transition takes place from a lower energy level to a higher energy level energy…

Q: What causes the shielding effect to remain constant across a period? B I

A: Shielding effect across a period:

Q: Element M reacts with sulfur to form an ionic compound with the formula M2S. Element M is more…

A:

Q: QUESTION 15 Which of the following is diamagnetic? O 13AI O 15P O 24Cr O 48Cd O 83Bİ QUESTION 16…

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Q: Q5/ A- Atoms are spherical and so when silver atoms pack together to form silver metal, they cannot…

A: 5- (A)

Q: Which of the following atoms has the smallest atomic radius? O a) p Ob) As OC) N d) Bi e) Sb

A: These types of questions are done according to the periodic trends of elements in a periodic table.

Q: what is iodine 131 electronic arrangement

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Q: Write the first ionization energy of 8.6x10^-19 in standard decimal form

A: The first ionization energy is =  8.6×10-19  The standard decimal form of this value is =?

Q: Complete the following shorthand notations: ? (p, a) §Li 15 31P (a, ? ) 34S 16 242Cm (a, n) ? 96 25…

A:

Q: 1. The following is an electron transfer reaction between two atoms: Cu + O ----> Cu2+ + O2- Which…

A: Given,

Q: Place the following in order of increasing radius. Br Na' Rb' Rb* < Br < Na* Br < Na* < Rb* O Na' <…

A: When a species gain or lose electron then it is referred to as an ion.  In case of positive charge,…

Q: 19 - Which of the given elements has similar properties with iodine (I) A) Br B) Te C) Ar D)…

A: Generally, the elements of a given group have similar properties due to similar general electronic…

Q: Why is Li-6 less abundant than Li-7

A: Given that Li-6 is less abundant than Li-7

Q: Determine, by calculations, which isotope of cooper is the most abundant in nature

A: avg. atomic mass=∑i(isotopei×abundancex) With regards to the genuine computation, it's simpler to…

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A:

Q: Which of the following is based on the emission of a second electron after high energy radiation has…

A: It is asked to mention on the basis of which effect a second electron emission after high energy…

Q: An ion has a mass number of 208 and an atomic number of 82, hov many electrons does it have if the…

A: Introduction- Negatively charged particle is an electron. The total number of electrons in an atom…

Q: In the formula Al2Se3, what is the charge of the Aluminum and the Selenium?

A: First of all let us analyze the given structure of Al2Se3. The structure has two atoms of aluminium…