what is iodine 131 electronic arrangement

Q: Calculate the mass change in grams bf the copper and nickel electrodes. mass change of copper…

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Q: Ph 2. (Across) Heaviest element that a star can fuse. (symbol) Ph 4. (Across) In IUPAC naming this…

A: Since you have asked multiple questions that are different, we will solve only one question for you…

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: Write about the potential for human exposure to lead

A: Lead is a naturally occurring toxic metal found in the Earth's crust. Exposure to high levels of…

Q: or selenium (#34)?

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Q: A period 3 element with an equal number of nucleons

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Q: d Po undergoes four decay reactions: a, B, a, B. Step 1. 218 Po undergoes a decay to give 14Pb 84 82…

A: Identify the symbol, mass number and atomic number ----

Q: 6 28 From the following lists of metals, select those that would (1) react with water; (2) react…

A: We will consider following metals - Au, Be, Bi, Ce, Fe, Ga, Ir and Pu And catagorise them on basis…

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: For question 16 to 18, refer to the following Periodic Table. a h i k e d 16. Which of the following…

A: Periodic table is arrangement of elements on the basis of atomic masses.

Q: Write an equation for the radioactive decay of beryllium-7 ( ) by an electron capture.

A: The answer is given as follows

Q: Use the periodic table to write the condensed electron configuration for Co [atomic no. =27].

A: Condensed valence configuration: It contains two parts; core electrons (electrons in Noble gas) and…

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: How are Deuterium and tritium are useful/

A: Deuterium and tritium both are isotopes of element hydrogen. Furthermore, deuterium has atomic mass…

Q: The elements of group 1 are reactive but those of griup 18 are inert, why?

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Q: Identify if the cosmic phase (bigbang, stellar formation, stellar explosion) in which the reaction…

A: Big Bang nucleosynthesis refers to the production of nuclei other than H-1, the normal, light…

Q: What is the positron emission of manganese–51

A: A nuclear reaction involves the conversion of nucleus with the emission of certain nuclei or small…

Q: 6. According to paragraph 5, "trace amounts of plutonium and neptunium have been found naturally as…

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

Q: With the help of an activity show that iron is more reactive than copper?

A: Iron and copper are both metals. The symbol to denote iron is Fe and that for the copper is Cu.

Q: Discuss the application of thorium as a source of nuclear fuel

A: Thorium can also be used as alternative source of nuclear fuel due to following applications: There…

Q: What is the composition of Radon?

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Q: What is the cosmic importance of unstable ⁸Be?

A: Cosmic rays are high-energy ionizing radiations found in the electromagnetic spectrum of radiations…

Q: What is the radium

A: Radium a chemical element with atomic number 88. It is a white radioactive metal used in the…

Q: Predict its decay pathway

A: Atomic number of Strontium (Sr) is 38

Q: the chemical formula for iodine fuming to find finger prints

A: Iodine dissolves easily in fats; fingerprints are composed of fats only. The small amount of fat…

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

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Q: Why is iron the most abundant element in Earth’s core?

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Q: How’s would you explain to a friend what you have learned about why lead contamination happened in…

A: Presence of high levels of lead (Pb) is very much detrimental to health. It causes damage to the…

Q: Give some evidence and describe the formation of the heavier elements during star formation and…

A: Heavy elements were formed only billions of years after the formation of the star.

Q: If a nucleus forms with a radius less than critical radius for nucleation, it will disappear.…

A: Hello Subscriber ! You have posted two distinct questions. As per our policy, we have answered the…

Q: Using Wolfram Alpha (http://www.wolframalpha.com/) orsome other reference, determine which of these…

A: Now from the given reference, we have to which of the following elements would melt at a temperature…

Q: can someone explain question 7？ Why As3- become a Ar？？？

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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 charge would exist on chlorine (#17) after it reacts with a rubidium atom (#37)?

A: We would check electronegativity values of determine the charge.

Q: Which hydrogen isotope is radioactive?

A: Three isotopes of hydrogen are Protium(H11); deuterium(H12) and tritium(H13) Here tritium is radio…

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: Noble Gases

A: Noble gases are defined as a group of rare gases which include helium, neon, argon, krypton, xenon,…

Q: What is the electron configuration for iodine 131 isotope

A: The arrangement of electrons in an atom with increasing order of energy level is considered as…

Q: 1) List 3 possible reasons why you might not observe a reaction even though the activity sreies…

A: Reactivity series is the series of metals placed according to their reactivity from highest to the…

Q: Po undergoes four decay reactions: B, a, B, a. Step 1. Po undergoes B decay to give At Step 2. At…

A: An alpha decay is a radioactive decay in which a radioactive nucleus decays into another nucleus…

Q: why are noble gases so inert(unreactive)?

A: Noble gases are the elements that are present in the group 18 of the periodic table. The name of the…

Q: Oxygen-8 is less stable than Oxygen-9

A: Oxygen-8 and oxygen-9  are different isotopes of oxygen. Oxygen 8 has 8 proton and oxygen 9has 9…

Q: What is the core charge of oxide-15

A: The atomic number of oxygen-15 = 8

Q: Which of the following is more reactive and why? Explain using periodic trends. a) Lithium, sodium,…

A: Reactivity of Group 1 and 2 elements increases when we move down the periodic table. a . Among the…

Q: Strontium-90 is a particularly dangerous product of nuclear fission because it is chemically similar…

A: Since you have posted more than one question, we will solve only first question for you. If you want…