How many protons and neutrons are in an atom of Pm-149? Number of protons Number of neutrons =|

Q: An atom of calcium is represented by 12C.. How many neutrons are in the nucleus of this atom?…

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Q: Antimony has 2 commonly occurring isotopes. 57.21% of Antimony atoms have 70 neutrons and 51…

A: Given: Antimony has 2 isotopes For first isotope, Abundance = 57.21% , Neutrons = 70 and protons =…

Q: How many protons and neutrons are in an atom of Cu-57 ?

A: The number of protons and neutrons in Cu-57 is given below

Q: (i) What is the mass of a neutron? (ii) What is the charge of a neutron?

A: Neutron is a subatomic particle as like proton. It is found in the nucleus along with proton and it…

Q: An ion with six protons, seven neutron and a charge of 2 + has an atomic number of?

A: Given :-  Number of protons = 6  Number of netrons = 7  Charge = +2 (which means loss of 2 electrons…

Q: . How many protons, neutrons, and electrons are there, respectively, in 69Se2- ?

A: Given    Element = Se   Number of proton , Neutron , electron  = ?

Q: How many neutrons are there in an atom of lead whose mass number is 208?

A: Given: mass number is 208 To find: number of neutrons

Q: Bromine has two naturally occurring isotopes (Br-79 and Br-81) If the natural abundance of Br-79 is…

A: Given: There are two naturally occurring isotopes of Br. The abundance of isotope 1 = 50.69 % Mass…

Q: What is the mass number of an atom that contains a. 42 protons, 42 electrons, and 53 neutrons? b. 24…

A: a. 42 protons, 42 electrons, and 53 neutrons? b. 24 protons, 24 electrons, and 28 neutrons? To find…

Q: What is the symbol for an Atom that contains 91 protons in 140 neutrons?

A: Atomic number (Z) is the number of protons in an atom.  Mass number (A)is the combination of protons…

Q: Which statements about subatomic particles are false?a. Protons and electrons have charges of the…

A: The particles utilized to form any particular atom are named "subatomic particles" and such…

Q: What particles are found in the nucleus of an atom? What is the charge of the nucleus?

A: Sub-atomic particles are the particles that are present inside the atom. Three sub-atomic particles…

Q: Chlorine has two abundant isotopes, Chlorine-35 and Chlorine-37. How many protons and neutrons are…

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Q: An ion that consists of 16 protons, 32 neutrons, and 18 electrons has:

A: The atom consist of 3 particles-  1- electron 2- proton 3- neutron

Q: Iodine has a mass number of 127 and 53 protons, how many neutrons does it have?

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Q: Which of these statements is an accurate description of an atom of potassium-40? O It is an isotope…

A: To determine which of the given statement describe the potassium-40  It is an isotope with 40…

Q: The amount of carbon-14 in ancient artifacts and fossils is oftenused to establish their age.…

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Q: What is the mass number (A) of an iron atom that has 31 neutrons?

A: Mass number is equal to the sum of the number of protons and the number of neutrons.

Q: how many protons neutrons and electtrons are in 119Sn2+

A: Elements are represented by a chemical symbol, with the atomic number and mass number written to it…

Q: An atom consists of two isotopes, the first with an atomic mass of 15.8967 amu and the second with…

A: Atomic mass of first Isotope = 15.8967 amu Atomic mass of second Isotope = 16.8245 amu Average mass…

Q: How many protons and neutrons are in an atom of Li-7 ? Number of protons = | Number of neutrons =

A: Mass of an atom arises due to the presence of both protons and neutrons present in a nucleus. The…

Q: Consider the two isotopes fe-54 and fe-56 how do they differ from each other? Uranium-235 is the…

A: If " X " is an element . Then it is generally represented as  AZX  Z = atomic number = number of…

Q: How many protons does an atom of mercury-200 have? Write the numerical answer only.

A: The number of protons is represented by the atomic number. The protons are present inside the…

Q: Copper has 2 stable isotopes, namely Cu-63 and Cu-65. The atomic masses of the said isotopes are…

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Q: If Chlorine has an atomic number of 17 and an atomic mass of 35, how many protons, neutrons, and…

A: Given that, Atomic no. of Cl = 17 Atomic mass of Cl= 35 then,

Q: How many electrons does it take to equal the mass of a proton?

A: An atom is made up of three subatomic particles. These are known as protons and neutrons that are…

Q: A certain isotope has a charge of +3 and has 33 protons and 42 neutrons in the nucleus. How many…

A: Consider the given information is as follows; Number of protons = 33 Number of neutrons = 42…

Q: In a sample of nitrogen, there is 99.63% N-14 atoms and 0.37% of N-15 atoms. What is the atomic mass…

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Q: How many protons, electrons, and neutrons are present in an atom of 52/24Cr?

A: An atom is composed of three main sub-atomic particles; electrons, neutrons and protons. The atomic…

Q: Estimate the percentage of the total mass of a atom that is due to (a) electrons, (b) protons, and…

A: Dear student, you have not mentioned the atom for which the mentioned percentage is required. I am…

Q: How many neutrons are there in chlorine Cl

A: Isotopes:  The atom has same atomic number but different mass number is called isotope.The stable…

Q: What is the number protons, neutrons, and electrons in Mg?

A: The number of protons, electrons and neutrons in an element can be calculated by using following…

Q: Calculate the number of protons neutrons and electrons in 84Kr36

A: The below points should be kept in mind always to solve this type of problem. The mass number is the…

Q: How many protons, electrons, and neutrons, respectively, does 129Cs have?

A: Since we know that  Mass Number = Number of Protons + Number of neutrons  And  Atomic Number =…

Q: Which subatomic particles have a negative charge?

A: A typical atom consists of three subatomic particles: protons, neutrons, and electrons. Protons and…

Q: How many protons, neutrons, and electrons, respectively, are in 57Co2+?

A: Given ion,         57Co2+ ion The atomic number of cobalt is 27.

Q: How many protons and neutrons are in an atom of Th-229 ? Number of protons= ________ Number of…

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Q: On a distant planet, the element silver has an average atomic mass of 107.94 amu and only two…

A: Average atomic mass of silver = M = 107.94 amu  Atomic mass of mass of one isotope (Let isotope A) =…

Q: Magnesium has three naturally occurring isotopes with masses of 23.99, 24.99, and 25.98 amu and…

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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: 4/2He+2has how many protons, neutrons, and electrons?

A: Consider the relation between atomic number, number of protons and number electrons in the neutral…

Q: Atomic Number Atomic Mass = : # of Protons : # of Protons + # of neutrons :: #of electrons : #of…

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

A: The smallest unit of ordinary matter that makes up a chemical element is an atom. Every solid,…

Q: .What is the total number of protons, neutrons, and electrons in a cadmium, Cd, atom that has a mass…

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Q: How many protons, neutrons, and electrons are there in a neutral atom of Tc (technetium-97)?

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

Q: How many protons neutrons and electrons are present in a single atom of bromine-79?

A: Since the atomic number of bromine = 35  hence number of electrons = Atomic number = 35

Q: How many protons, neutrons, and electrons are in an atom of (a) 197Au

A: Given the isotope of Gold. The atomic mass of gold is 197 and the atomic number of the gold is 79.

Q: How many protons, electrons and neutrons does Cl1?

A: In the question, we have been given a halide ion and we need to calculate the number of electrons,…

Q: A atom X has two naturally occurring isotopes. One isotope has a natural abundance of 71.99% with a…

A: Mass of isotope can be calculated using formula: Atomic mass of X = (mass of isotope 1 × %isotope 1…

Q: How many protons, neutrons, and electrons does 79se2-  ion?

A: Se or selenium comes under carbon family. Selenium is a metalloid(an element intermediate in…