Q: An atom of the isotope 138Ba2+ consists of how many protons (p), neutrons (n), and electrons (e)?

A: Isotope is an element with same atomic number but with different mass number. Protons(e+) are the…

Q: How many protons, neutrons and electrons are in one atom of 70/30Zn?

A: We have given that  atom   3070Zn   We know that Representation of an element                Z AX…

Q: amino acid methionine is depicted in the picture.  C5H11NO2S is the molecular formula for…

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Q: A sample of iron weighing 15.0 g was heated with potassium chlorate (KCIO3) in an evacuated…

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Q: Atomic number for Uranium is 92 How many protons, electrons, neutrons in Isotope U-92?

A: Answer - According to the question - Atomic no. of uranium, Z=92    No. of protons =Z=92   No. of…

Q: What is the mass number of an isotope with an atomic number of 56 and that has 75 neutrons?

A: Mass number is the atomic mass of an atom. It is the sum of no of protons and no of neutrons present…

Q: How many protons and neutrons are present in an atom of 39/19K?

A: Number of protons and neutrons in an atom of  39/19K

Q: ilver is composed of two naturally occurring isotopes: Ag-107 (51.839%) and Ag-109. The ratio of the…

A: First calculate the percent abundance of Ag-109.

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: How many protons and neutrons are present in an atom of 45/21A5Sc

A: The above is isotope of Scandium.

Q: if the atomic symbol 13354Xe, what is the mass #, # of protons, and # of neutrons?

A: The symbol of an element is given by the expression XZA, where Z is the atomic number and A is the…

Q: Determine the number of protons and the number of neutrons in isotope. 20882Pb

A: In 20882Pb :

Q: If an isotope has 90 protons, how many neutrons are required in order for it to have a stable atomic…

A: Concept-: Isotope: Isotopes are known as members of a family of an element which all have the same…

Q: What is the number of neutrons in I-131?

A: Given, Element : I-131 Number of neutrons = ? Note: In the modern periodic table, iodine (I) belongs…

Q: What is the mass number (A) of a calcium isotope that has 19 neutrons?

A: Answer :-  The mass number (A) of a Calcium isotope that has 19 neutrons = 39…

Q: 234 Uranium has three common isotopes. If the abundance of *U is 0.01%, the abundance of U is 0.71%,…

A: Since you have posted multiple questions, we are entitled to answer the first only. Please repost…

Q: There are two naturally occurring isotopes of europium, 151Eu (151.0 amu) and 153EU (153.0 amu). If…

A: Given : There are 2 naturally occurring isotopes of europium. Mass of 151Eu = 151.0 amu Mass of…

Q: The last “missing” element from the first six periods waspromethium, which was finally discovered in…

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Q: Besides number of neutrons, what else do isotopes of the same element have that is different?

A: Isotopes are the variation of chemical elements that have the same number of protons but a different…

Q: An element consists of 1.40% of an isotope with mass 203.973 amu, 24.10% of an isotope with mass…

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Q: What can you say about the number of neutrons in the stable isotopes of fluorine, sodium, aluminum,…

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Q: Consider the following data for the hypothetical element Smileonium, So. What is the average atomic…

A: Given data for the hypothetical element Smileonium: We have to calculate the average atomic mass of…

Q: What is the mass number of xenon-127?

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Q: in nature, element X is found as a mixture of two isotopes, one with mass number 107 and the other…

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Q: 2. The element rhenium (Re) exists as two stable isotopes and 18 unstable isotopes. What does…

A: Answer: 75 Proton and 110 Neutron. Given,Element of Rhenium (Re) exist as two stable isotopes and 18…

Q: The radioactive nuclide with the symbol 75Se is used to measure the shape of the pancreas. What is…

A: The atomic number of Se is 34 and the mass number of this radioactive nuclide of Se is 75. Atomic…

Q: Atomic # for uranium is 92 how many protons, electrons, neutrons in isotope U- 96?

A: Given that, Atomic number of U is 92.

Q: A sample of the nonexistent element mythium consists of 25.59% of an isotope with mass number 580,…

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Q: An element consists of 4.35% of an isotope with mass 49.946 u, 83.79% of an isotope with mass…

A: Average atomic mass: The average atomic mass of an element is the sum of the masses of its isotopes,…

Q: If a sample of gallium contains 1.56×104 atoms of gallium-69 and 1.02×104 atoms of gallium-71, what…

A: Given,1.56×104 atoms of gallium 69.1.02×104 atoms of gallium 71.

Q: What is the symbol for the isotope of 55Fe that possesses 31 neutrons? Express your answer as a…

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Q: Which of the following has the greatest number of neutrons? O antimony-123 O tin-121 55 Fe 26 O the…

A: We know that ; Atomic number of element is equal to the number of protons in the element . ( Atomic…

Q: How many protons, neutrons, and electrons are contained in an atom of argon, which has an atomic…

A: The atomic number is determined by the number of protons. The number of neutrons is obtained by the…

Q: What is the Average atomic mass of an unknown element given its isotopes and their abundancies…

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Q: The atomic mass of rhenium is 186.2. Given that 37.1% of natural rhenium is rhenium-185, what is the…

A: Average atomic mass = ∑i=1n (mass of ith isotope)(% abundance of ith isotope)100 Where "n"…

Q: What is the relationship of hydrogen's mass to hindenburg tragedy?

A: The Hindenburg tragedy is the result of combustion of hydrogen. Water (vapor) is obtained as…

Q: There are two naturally occurring isotopes of europium, 151Eu(151.0 amu) and 153Eu(153.0 amu). If…

A: Given information:Two isotopes of europium, 151Eu (151.0 amu) and 153Eu (153.0 amu)Atomic mass of Eu…

Q: An atom of a carbon-14 isotope would contain how many protons, neutrons, and electrons?

A: The correct answer is given below

Q: What element has a mass number of 9 and has five neutrons in its nucleus?

A:

Q: An element has a mass of 207 and has 125 neutrons in its nucleus. How many protons and electrons…

A: The smallest unit that retains an element's attributes is defined as an atom. Atoms can't be created…

Q: Determine the mass percentage of F in C6H11OF3. A. 36.50% B. 37.33% C. 39.54% D. 40.67% E. none of…

A: Mass of one mole of Carbon, Hydrogen, Oxygen, and Fluorine are calculated as follows,

Q: What would be the approximate mass of a particle that has 48 electrons, 46 neutrons and 52 protons?

A: No of electrons = 48 No of neutrons = 46 No of protons = 52

Q: Determine the number of protons and the number of neutrons in isotope. 33P15

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Q: What type of light is used in a TV remote control?     What is the mass number of the radioactive…

A: 1. A remote has an Infrared (IR) transmitter led which uses IR light to transmit you input to TV…

Q: Give the number of protons and neutrons in the nucleus of boron-11

A: The number of protons and neutrons in the nucleus of boron-11 is to be determined.

Q: How many moles of carbon are there in a diamond weighing 2.11g

A: Mole is defined as a unit of measurement for the amount of substance in the International System of…

Q: What is properties chemical and physical of ( Carbon -11 )

A: Isotopes generally have similar chemical and physical properties only there is single difference…

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.