Percent Composition له 3 4 S Time A 6 A の 8 7 Data Table 3: Parent Isotopes over Predicted Time Half Time (billions of years) life Parent Isotopes Remaining (%) 0 0 1 4.92 100 50 2 9.84 25 3 14.76 12.5 4 19.68 6.25

Q: 5. Which of the following information can be determined from this isotope: sodium 23 L # of protons…

A: The isotope given is Sodium-23. Since the element is mentioned as sodium. Hence the atomic number of…

Q: For two isotopes Unk-45 and Unk-47 with relative abundance’s of 12.3% and 87.7%, respectively, which…

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Q: Vhich of these foods would be most like the 'plum-pudding-model of the atom? A chocolate chip muffin…

A: Answer - Option (A) is correct. A chcolate chips muffin  Explanation - According to the question -…

Q: Write the symbol of an isotope that has a mass number of 59 and an atomic number of 26.

A: This is the representation of an element whereZ= Atomic numberA=Atomic mass/Mass NumberX=Element…

Q: 34. How many protons, electrons and net does Be have? beryllum 4 Ве 9.0122

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Q: Calculate the atomic mass element "X" if it has 2 naturally occuring isotopes withthe following…

A: Percent abundance of X-51 = 67.88 %  Percent abundance of X-53 = 32.12 %

Q: What is an atomic mass unit? Why is it necessary to introduce such a unit?

A: Matters are the substances that possess some mass and volume. These are formed by joining very small…

Q: Enter your answer in the provided box. 12 The atomic masses of the two stable isotopes of carbon, 13…

A: Given,  12C6 isotope has 98.90 %  molar mass = 12 amu And 13C6 isotope has 1.100 %  Molar mass =…

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: Many hospitals use radioisotopes for diagnosis and treatment or in palliative care. Three…

A: we have to write the isotope symbols for the given isotopes

Q: How many protons are contained in a circular puddle of liquid mercury that is 6.25 inches wide and…

A: In the given question we have to calculate the number of proton contained in a circular puddle of…

Q: In an alternate universe there are only two naturally occurring isotopes of iron. 58Fe //mel Bey Pun…

A:

Q: Supply the missing isotope in the nuclear equation below.  When entering isotopes, use the text…

A: We have to write the missing isotope of the nuclear reaction. Answer for Missing isotope is O-16

Q: how many isotopes of bromine exist ?

A: Isotopes:The variants of a chemical element, which have same number of protons and differs in number…

Q: Unstable isotopes are not radioactive. O True O False

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Q: What is an isotope? What is meant by the phrase “percent abundance in nature”? Explain the…

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Q: TRUE or FALSE: Isotopes are elements that have a different number of protons.

A: All atoms can be identified by the no. of protons and neutrons they contain. The no. of protons in…

Q: Part 1. Express your answer as an isotope. Part 2. Express your answer as an isotope.

A:

Q: Hi, I was wondering if you could help me with a question. Do I just take the percentage of each…

A: The isotopes of magnesium have following natural abundances: Isotope Abundance Mass (amu)…

Q: An element of unknown atomic mass has only two naturally occurring isotopes: 69X (68.935 amu,…

A:

Q: Which of the following pairs would be isotopes? A) 46X & 46X B) 52X & 53X C) 62X & 63X D) none is a…

A: Which of the following pairs would be isotopes?

Q: Boron has only 2 naturally occuring isotopes. The mass of boron-10 is 10.01294 and the mass of…

A: Given : Mass of boron-10 is 10.01294 amu and boron-11 is 11.00931 amu. Assuming abundance of…

Q: 2. Use the following isotopes to answer the following 17 F, 9 135 Cs, 55 100 Sn, 50 214 Po 84 Sr, 38…

A: The stability of a nucleus depends on the ratio of the number of neutrons to the number of protons…