Lithium has two stable isotopes: Lithium-6 and Lithium-7. Which isotope is the most abundant of the two? O A. Lithium-13 OB. None of the above. O C. Lithium-6 O D. Lithium-7

Q: Lithiu 6.941 9.10 37 Rb 47 r tals ids Be Beryllium 9012 S B M Magne 83 131 R Rall Name 12.01 An…

A: We are given: density of mercury = 13.6 g/mL weight (mass) = 26.8 grams volume =?

Q: Suppose an element consisted of two isotopes with masses of 89.9 amu and 91.1 amu. If 1.500x103…

A: When elements occur in earth crust in more than 1 natural form or commonly known as isotopes, their…

Q: 6. A solid circular cone made of pure platinum (d = 21.45 g/cm³) has a diameter of 2.75 cm and a…

A: To calculate mole=mass/molar mass For Calculate electron  78electron present in 1 atom of platinum…

Q: An element X occurs as three stable isotopes: X-21, X-22 and X-23. X-21 is 90.48% abundant and X-22…

A: Given : Element X exists as three stable isotopes. The three isotopes are: X-21 X-22 X-23

Q: Don't understand question 4

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Q: Part A - Determining the Number of Subatomic Particles in Ato Which of these atoms has the largest…

A: As we know Mass number= no. of proton+ no. Of neutron Also, No. Of proton= Atomic number Hence, No.…

Q: A neutron and a proton combine to form a nucleus why does the mass. Of the nucleus differ from the…

A: Given: A neutron and a proton combine to form a nucleus. And the mass of the nucleus differ from the…

Q: 2.2 Rhenium (Re) occurs naturally in two distinct isotopes, 185 Re and 187 Re, with an average…

A:

Q: A common isotope of Li has a mass number of 7. The atomic number of Li is 3. How can this…

A: The lithium atom has atomic number three, and the number of protons in the nucleus of lithium is…

Q: 5. Calculate the percent abundance of carbon-14 with a mass of 13.97 u and carbon- 12 with a mass of…

A: We have to calculate the % abundance of two isotopes.

Q: What do all isotopes of an element have in common? How do they differ? Provide an example to explain…

A: Each element of the periodic table has an atomic number and mass number. The atomic number is…

Q: Cerium is the most abundant rare earth metal. Pure cerium ignites when scratched by even by a soft…

A: Isotopes are variations of a single chemical element that varies in the number of neutrons and…

Q: 9. Which isotope is used in many smoke detectors for homes and businesses to measure levels of toxic…

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Q: The isotope with 15 protons and 14 neutrons is? The isotope with 9 protons and 8 neutrons is? The…

A: As we know, Mass number of an atom = number of protons +the number of neutrons Atomic Number of an…

Q: Common brass is a copper and zinc alloy containing 37.0% zinc by mass and having a density of 8.48…

A: Volume of brass 115.5 cm3convert this volume of brass into mass using density(d) = 8.48 g/cm3density…

Q: A hypothetical element, E, has two stable isotopes: E-46-46.046 u 64.08% E-51 = 50.826 u %3D 35-92%…

A: m1 = 46.046 , f1 = 64.08100 = 0.6408 m2 = 50.826 , f2 = 35.92100 = 0.3592 m1 and m2 are the mass if…

Q: Argon (Ar) has three naturally occurring isotopes namely: Ar-36, Ar-38, and Ar-40. a) How are these…

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Q: Explain how each scientist’s experiment contributed to the characterization of the atom (example:…

A: We have to explain each scientist’s experiment.

Q: 1. Determine the number of protons, neutrons and electrons F-20 , a radioactive isotope of fluorine.…

A: 1) The isotope given is F-20.

Q: How are isotopes of a particular element alike? How are they different?

A: Isotopes are atoms of the same element that have different numbers of neutrons but the same number…

Q: how many protons and neutrons are in 37Cl?

A: The answer to the following question is given as -

Q: 2T) A comprnd Cim 15 5.१५°% Olygen is 5.9496 mass of this com A) what Is the B) what IS the

A: Percentage of hydrogen = 5.94 %  Percentage of oxygen = 94.06 % Molar mass of compound = 87.55 g/mol

Q: Where are particles with virtually no mass found in the atom? A. The electron cloud B. Inside the…

A: Ans  A)  The electron cloud .

Q: The isotope of Nitrogen with a mass of 15amu is written as _? The isotope of Uranium with a mass of…

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Q: Naturally occurring bromine is composed of two isotopes: 50.69 % Br-79 (mass of 78.9183 amu) and…

A: Given,Naturally occurring bromine is composed of two isotopes:50.69 % Br-79 (mass of 78.9183 amu)…

Q: In any neutral Adam there are equal numbers of? A. Neutrons and electrons B. Protons and neutrons…

A: Neutral atom are those having not any charge. They are wholely neutral

Q: i have 16 protons  16 neutrons and 18 electons  what would a sketch look like?

A: Since number of protons = atomic number in case of ions Hence the atomic number of the above atom is…

Q: . In the following figures, the open circles represent atoms of an element and the filled circles…

A: Dalton’s Atomic Theory: Dalton's Atomic Theory is based on law of conservation of mass and the law…

Q: Two natural isotopes exist for silver. 51.83% of the atoms have a mass of 106.90509 u, and the…

A:

Q: How many isotopes does this element have?

A: From the graph, it is cleared that the number of isotopes of the unknown element is 5.

Q: Describe an alpha particle. What nucleus is it equivalent to? •    Describe a beta particle. What…

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Q: What are the charge and mass of?:  a)  a singly ionized sodium atom, Na2+ (??????: 2311??, ????=…

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Q: Potassium (Z = 19) has three primary isotopes: K-39, K-40, and K-41. 1) The half-li fe of K-40 is…

A: Given: Half life of K-40 = 1.248 X 109 years Initial activity of K-40 = 820 Ci And final activity of…

Q: 19) The fact that water is 11.2 % hydroen and 88.8 % oxygen by mass regardless of its origin is an…

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

Q: Isotope Relative Isotope Mass Abundance 18HO 17.990 amu 78.920%, 20HO ? ?

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Q: 1. Determine the number of protons, neutrons and electrons F-20 , a radioactive isotope of fluorine…

A: 1) The isotope given is F-20.

Q: Antimony has many uses, including infrared devices and as part of an alloy in lead storage…

A: We have the representation of element in which at bottom left you have known atomic number and at…

Q: Naturally occurring bromine is composed of two isotopes: 50.69 % Br-79 (mass of 78.9183 amu) and…

A: Given:Isotopes of Bromine :  50.69 % Br-79 (mass of 78.9183 amu) and…

Q: 1. A solid circular cone made of pure platinum (d = 21.45 g/cm3 ) has a diameter  of 2.75 cm and…

A:

Q: Element X has two isotopes. The first isotope has a natural abundance of 80% and has a mass of 60…

A: Given : Abundance of first isotope = 80% Mass of first isotope = 60 amu Abundance of second isotope…

Q: 14. Selenium-75 is used in the diagnosis of disorders related to the pancreas . How many (a) protons…

A: In a neutral atom the number of electrons and protons are same.

Q: Determine the number of protons and neutrons in 41/20 Ca?   Number of Protons  Number of Neutrons…

A: Atom contains protons, electrons and neutrons.  Protons are positively charged and electrons are…

Q: The atomic masses of the stable isotopes of boron, 105B (19.78%) and 115B (80.22%), are 10.0129 and…

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Q: Consider the atoms (a) P-31, (b) S-33, and (c) P-33.   From greatest to least, rank them by the…

A: Number of neutrons can be determined by subtracting number of protons from the mass number of an…

Q: How are isotopes of an element identical to one another? How are they different from one another

A: Isotopes of an element is defined as atoms of same element having different mass Number but same…