Which of the following statements is true about actinoides are all synthetic elements O include element 104 O have any short lived isotopes O have variable valency

Q: What mass in grams of Na2S2O3 is needed to dissolve 6.3 g of AgBr in a 1.0 L solution if Ksp for…

A: The given data contains, mass of Na2S2O3 = 6.3 g. Volume = 1.0 L Ksp of AgBr = 3.3×10-13 Kf of…

Q: Formulas of alkalis only are given in a line: O a. NaOH, Ca(OH)2, Sr(OH)2 O b. LIOH, KNO3, NH4OH c.…

A:

Q: What is the % potassium in 1.0 mole of K2PTC16? (K= 39.1, Pt 195.08, CI = 35.45)? a. 1.6% b. 6.1%…

A: Given: Moles of K2PtCl6= 1.0 mol Molar mass of K = 39.1 g/mol Molar mass of Pt = 195.08 g/mol Molar…

Q: Calculate the ionization ratio of 0.5M Ammonium hydroxide, pKa=4.74 *

A: Given data Concentration: C = 0.5 M pKa =4.74 Dissociation of Ammonium hydroxide is given as NH4OH…

Q: Determine the concentrations of the ionic species present in a 0.402 M solution of the…

A:

Q: which of the following is Correet fer stability onder of P6* and Pb +2 A) Pb 8) Pb = Pb+4 DINone

A:

Q: Account for (explain the reason for) the difference in acidity. HO-AS-OH HO-As-OH OH pKa= 2.12…

A:

Q: or selenium (#34)?

A:

Q: With a pKa of 11.6, hydrogen peroxide is a stronger acid than water. Why?

A: An acid is a substance that can donate protons when dissolved in aqueous solution.

Q: A pКa ~ 4.15 В pКa ~ 2.16 NH, C pka - 9.58 The structure as drawn shows the molecule having all of…

A:

Q: Which of the following elements would be expected to be particularly stable? 37 O 17 40 Ca O 20 38 K…

A: A multiple choice question based on octet rule, which is to be accomplished.

Q: Which product is formed by gamma emission from technetium-99? The atomic number of technetium is 43.

A: The product that is formed by gamma emission from technetium-99 is to be determined. The atomic…

Q: Despite the similarities in the chemical reactivity of elements in the lanthanide series, their…

A: The Oddo-Harkins rule, according to which an element with odd number of proton in the nucleus has a…

Q: (i) State the Pauling First Rule for predicting the pKa of oxoacid. Illustrate your answer with an…

A: Ans(a)- Pauling first rule says tha pKa= 8-5p ,where p= number of M=O   (b) pKa order HClO3 >…

Q: 6. The chloride of an unknown element, X, is a liquid at 20 °C. This chloride reacts with water,…

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

Q: Calculate the alpha values for citric acid in a solution with a pH of 3.77, what is the predominate…

A: Citric acid is a triprotic acid.

Q: (c) electron capture by molybdenum-93 O 93 je+2 Nb Mo + _¡e → Nb ie+ Te He + 20 Zr Мо > 42 O 93 42…

A: ->From electron capture atomic number decreases by one unit. ->From positron emission atomic…

Q: For pH = 6.00, calculate the alpha two (a2) in an aqueous solution of citric acid. (Ka1 = 7.45 x…

A: Given: pH = 6.00 Ka1=7.45×10-4Ka2=1.73×10-5Ka3=4.02×10-7

Q: Radioisotopes are used in   LEDs   some food preservation processes   some glow-in-the-dark paints…

A: Radioisotopes are the unstable form of an element that emit radiation to transform into a more…

Q: How does a pKa value of -7.65 relate to the polarity of the compound?

A: Lower the pka value higher the acidity of compound which results  in the release of H+ ion shows…

Q: What is the pKa of the following ion  R3NH+? (Kb = 2.2e-4 for R3N)

A: Given: Kb of R3N is 2.2*10-4

Q: Draw atomic depictions for(a) ⁴⁸₂₂Ti; (b) ⁷⁹₃₄Se; (c) ¹¹₅B.

A: The structure of atom shows that it contains electrons, protons and neutrons. Neutrons and protons…

Q: 6. The ionic radius of TI' is 164 pm and the ionic radius of Pb* is 133 pm. Based on what we have…

A: Toxicity can be measured in terms of LD50 i.e. the dose required to kill 50% of experimental…

Q: A chemical reaction occurs resulting in a flame, what causes the flame?   Acceleration of protons…

A: A plasma is an ionized gas that is reflective to low frequency electromagnetic waves like radio…

Q: 45 The modern Periodic Table, lallol lallvl The discovery of the neutron. 16 47 The resolution of a…

A: Newlands arranged the modern periodic table according to their atomic weights, chemical and physical…

Q: QUESTION 3 For each of the following, give the most specific classification according to type of…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: The accompanying graph illustrates the decay of Mo, which decays via positron emission. a. What is…

A: M4288o is an unstable isotope of Mo, which undergoes positron (β+) emission to form a more stable…

Q: Predict its decay pathway

A: Atomic number of Strontium (Sr) is 38

Q: which one of the following is an ionization technique? MALDI or ESI

A:

Q: Place the following in order of  increasing atomic radius.  Rb Be Ca     Rb < Ca < Be     Rb < Be…

A: The atomic radius of items generally increases from top to bottom within a group.

Q: DCI CH3 -78 °C 1

A:

Q: Using the interactive nuclide chart, predict the most probable decay series of the following [take…

A: Protactinium has 29 radioisotopes. Almost all naturally occurring protactinium is 231Pa. It has a…

Q: Is Gd considered a F-block element, main group element, transition metal, or halogen? main group…

A: Gd is an atomic symbol of the Gadolinium element and has an atomic number of 64. Gadolinium is a…

Q: The equilibrium isotope exchange reaction between hydrogen and deuterium

A: Deuterium (D or 2H) is an isotope of hydrogen. The molecule D2 undergoes an exchange reaction with…

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

A: Which of the following is diamagnetic ?

Q: What are the similarities and differences between the lanthanides and the main groups?

A: Groups 1, 2 and 13 to 18 constitute the main group. In both, Lanthanide's and main group , the ionic…

Q: What is the charge of the predominant form of phosphoric acid at pH=3.00 pKa 2.15, pKa27.20, pK=…

A: Given: pH = 3.00

Q: Show the two equations of formations and dissociation of. deuteron.

A: Two equations if formation and dissociation of deuteron. As we know it is formed chiefly by ionising…

Q: Predict the chemical formula for the ionic compound formed by Hg₂²⁺ and CO₃²⁻

A: The type of chemical bonding that consists of the electrostatic interaction of oppositely charged…

Q: Why do the transition elements (Z = 21 to 30) all have similar chemical properties?

A: There are 118 elements present in the periodic table. The elements of group 1 and 2 which are placed…

Q: What is the reason why carbon is considered a unique element Carbon has two stable isotopes, carbon…

A: Reason why carbon is considered a unique element- Carbon is unique among all the elements because it…

Q: 3. Which radioactive process would turn Am-243 to Np-239? positron emission alpha decay gamma decay…

A:

Q: As the number of protons and neutrons in the nucleus increases, elements are much less likely to…

A: The atomic numbers of the elements are  radium    : 88 iron         : 26 uranium  : 92…

Q: Which of these is a synthetic element? molybdenum (42) plutonium (94)     arsenic (33) silver (47)

A: Synthetic element: It is such an element which is not occurring naturally in nature but it is…

Q: 165 21. Identify the neutron-to-proton ratio for the isotope 67H0 and determine if the isotope is…

A: Identify the neutron-to-proton ratio in the given nuclide--

Q: X-rays over dose very dangerous because the interaction causes ionization of atom a, B and y…

A: 1) We say that x-rays are "ionizing rays" meaning that they have the unique capability to remove…

Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.