Indiana Jones replaces the idol with a bag of sand of approximately equal volume: (Denisty of gold = 19.32g/cm3) ; density of sand = 2 g/cm3.)  A. Did he have a reasonable chance of not activating the mass-sensitive booby trap? Justify your reasoning.  B. Using a calculation, what is the mass of 1 liter of sand compared to 1 liter of gold?

Q: Describe John Dalton's atomic theory?

A: Structure of atom is the significant discovery. Different scientists has proposed different…

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A:

Q: The radioactive element carbon 14 has a 1/2 life of 5750 years a scientist determined that the bones…

A: let assume the initial concentration of C-14 as Co=100%

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A: The answer to the following question-

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A: Conversion units: 1 solar mass = 1.989×1030 kg 1 fm = 10-15m 1 km =1000 m 1 amu = 1.66×10-27 kg…

Q: Using the data below, determine the missing mass of (19 9)F (atomic weight = 18.9984):  mass of…

A: For given element 9F19 we have to calculate out the missing mass of element upto four decimal using…

Q: The radioactive element carbon 14 has a 1/2 life of 5750 years a scientist determined that the bones…

A: According to the question, the radioactive element C has half life of 5750 years.  Lost percentage…

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A: We have to calculate the expected mass of B.

Q: The mass of a test tube and hydrate was 35.2755 grams. The mass of the empty test tube was 23.7726…

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Q: The cobaltisotope(t1 / 2 = 5.28yr) C^60is produced at a rate of 10 ^ 12atom / sec for a period of…

A: Given that, t1/2 = 5.28 year = (5.28×365×24×3600) s Hence, disintegration constant = λ =…

Q: 2/17/2021 Chapter 2 Concept Check on Atoms and Isotopes Chapter 2 Concept Check on Atoms and…

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Q: neutrons/cm2.s), calculate the number of neutrons captured per second by 1.0 cm-2 of the

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Q: The average atomic mass of a sample containing three lithium-6 atoms and two lithium-7 atoms is…

A: The atomic mass of Lithium-6 isotope is 6.015122 amu Atomic mass of Lithium-7 isotope is 7.016004…

Q: Why the concept of atomic number compared to fingerprint?

A: The smallest unit of ordinary matter that forms a chemical element is known as an atom. Every…

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Q: What did the scientist say when he found 2 isotopes of helium?

A: There are two isotopes of helium. He-4 and He-3 are the two isotopes of helium.

Q: Chemistry focuses on representing the submicroscopic world of atoms. A billion atoms of gold-197…

A: 1 Billion atoms of Gold weigh  = 3.3 × 10-¹³ g

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Q: A 7.08 gsample of copper is contaminated with an additional 0.80 gof zinc. Suppose an atomic mass…

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Q: An element from the Periodic Table is shown below. The atomic mass is given. A) Give the Name,…

A: The answer is given as follows

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Q: The density of copper is 8.96 g/cm3. How many copper atoms are in a sphere with a volume of 0.475…

A: Mass = Volume x density Number of moles = Mass in gram/Molar mass Number of atoms = Number of moles…

Q: Determine the missing element -3516S----à -10e + ?

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Q: Antimony (Sb), has two naturally occurring isotopes: Sb-121 that has a percent abundance of 57.30 %…

A:

Q: Write the isotopic symbol for Lead-206.

A: • We need to write the isotopic symbol for Lead-206

Q: Sample

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Q: Complete the following shorthand notations: ? (р, а) $Li 31p (a, ?) 1čS 242Cm (a, n) ? Mg (? ,p) iNa…

A: To find: The complete shorthand notation for the given compounds

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Q: does 1 mole of Ba and one mole of Pb have the same mass or a different mass?

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Q: Are you satisfied knowing that man can recreate an element using technology? Justify your answer​

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A:

Q: 28. - Electrons of an element T a) have a negative charge but very small mass T + b) determine the…

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Q: The two naturally occurring isotopes of antimony are ¹2¹ Sb and 123Sb whose exact isotopic masses…

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Q: An atom has a diameter of 1.50 Å and the nucleus of that atom has a diameter of 3.00×10−5 Å.…

A:

Q: What did the scientists who are credited with discovering the proton and neutron have in common?

A: Solution Ernest Rutherford determined that his scintillation detectors detected gas nuclei once a…

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A:

Q: 7. A fictitious element which we will call dearbornium (Db) is made up of two isotopes. A sample of…

A: Given that : For the element dearbornium (Db) in a sample : Number of atoms of 292Db = 2233  Number…

Q: 23. The two naturally occurring isotopes of antimony are 12"sb and 12sb whose exact isotopic masses…

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Q: Below are the five atomic models in history. Number them in historical order from 1 to 5. (1 being…

A: The 5 atomic models in history are given. They are to be numbered in historical order from 1 to 5.…

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A: An atom contains the subatomic particles like Electrons, Protons and Neutrons. The subatomic…

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Q: 70: Find the masses of P O, and P,O,0 10

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Q: Which part of John Dalton’s theory was disproved by J.J. Thomson’s cathode-ray tube experiments?…

A: To find: Which part of John Dalton’s theory was disproved by J.J. Thomson’s cathode-ray tube…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.