An element has three naturally occurring isotopes. What other information must you know in order to calculate the element’s atomic mass?

Q: What is distinctive about isotopes of elements, and why are they important?

A: The atomic number of an element is expressed as the number of protons and it is equal to the number…

Q: An element with an average atomic mass of 17.673 amu has two naturally occuring isotopes If one…

A: Given:- Average atomic mass = 17.673 amu  Mass & abundance of one isotope = 18.731 amu &…

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: When does the number of Neutrons vary?

A: An atom consits of the electron,proton and neutron. The atomic mass of the atom depends upon the…

Q: Isotopes means; same element can have different masses.

A: Isotopes mean;  same element can have different masses: True Explanation:  Isotopes are a family of…

Q: What are the atomic number (Z), mass number (A), and symbol of the chlorine isotope with 18…

A: Isotopes are elements with same number of protons but having different number of neutrons. Isotopes…

Q: Suppose we redefined the atomic mass scale by arbitrarily assigning to the naturally occurring…

A: The atomic mass of a single atom is simply its total mass of the protons, neutrons, and electrons in…

Q: If two different isotopes have the same atomic number, it must mean that

A: The word isotope is derived from a combination of two words- ‘iso’ means ‘same’ and ‘tope’ means…

Q: Which isotope has the same number of electrons and neutrons as the anion 19F-?

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Q: What is the mass number of an isotope with an atomic number of 61 and that has 68 neutrons?

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Q: the oxygen isotope with 7 neutrons

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Q: Uranium exists mainly as two isotopes in nature, possessing mass numbers 235 and 238. Write the full…

A: The atomic number of Uranium is 92. Hence number of protons in both isotopes = atomic number = 92

Q: What is the atomic number for an element whose mass number is 115, which contains 65 neutrons per…

A: Welcome to bartleby ! We have to tell atomic number

Q: What is the mass number of a phosphorous (P) atom with 17 neutrons?

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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: Explain how isotopes are produced by changing the relative number of specific subatomic particles

A: Isotopes are atoms of same elements which have same atomic number but different mass number. In…

Q: Differentiate between an ion and an isotope

A: In order to differentiate between two species it means the difference between the species needs to…

Q: How are the isotopes of an element different from one another?

A: Isotopes are atoms of the same element which are different in mass. That means They have the same…

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

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Q: A helium nucleus has two protons and two neutrons. How many electrons does it take to equal the mass…

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Q: What is the atomic number for an element whose mass number is 196, which contains 116 neutrons per…

A: Given : mass number of element =196.                   Number of neutrons =116 To find : Atomic…

Q: How is the mass number related to the number of protons and neutrons an atom has?

A: The nucleus of an atom contains three sub-atomic particles. These are protons, neutrons and…

Q: Does the number of protons define the element? How?

A: Does the number of protons define the element? How?

Q: This element has only two naturally occurring isotopes, in which the lighter isotope has an…

A: Given  Abundance of lighter isotope( AL )          = 19.9% Then abundance of heavier isotope (AH) =…

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: Write the atomic symbol for the isotope with mass number 84.

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Q: What is atomic mass? How is it calculated?

A: Atoms are the smallest constituents of a chemical compound and the atoms do not have independent…

Q: An element has two naturally occurring isotopes. One has an abundance of 37.4% and an isotopic mass…

A: Two naturally occurring isotopes.i. Abundance of 37.4% and an isotopic mass of 184.953 amuii.…

Q: What are the factors that affect the average atomic mass of a mixture of isotopes?

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Q: What is the mass number of an atom of calcium that has 21 neutrons?

A: We know ,  Mass number of an atom = number of proton + number of neutron

Q: A hypothetical (fake) element has 2 naturally occurring isotopes. Isotope #1 has a mass of 185.8410…

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Q: What data must you know about the isotopes of an element to calculate the atomic mass of the…

A: The elements that have different atomic mass and same atomic number are known as isotopes.

Q: What is the correct shorthand notation for an atom of

A: For an atom representation first, write its symbol and then in superscript on the left side of  the…

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: Describe how the atomic and mass numbers change, with at least one specific example?

A: An atom has a nucleus situated at the center and the electrons are surrounding it. The nucleus has…

Q: What are the different mass numbers of Isotopes ?

A: Different mass numbers of Isotopes are explained below,

Q: For an isotope that has 82 protons and 124 neutrons. What is the mass number (A) and what is the…

A: Given :- number of protons = 82               number of neutrons = 124  To be calculated :-  Mass…

Q: Write the isotope symbol that fits the description, using a superscript for the mass number and a…

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Q: Which subatomic particles have a negative charge?

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

Q: The nucleus of an atom contains 56 neutrons.  The atom contains 43 electrons.  What element is it…

A: Given, Number of neutrons = 56 Number of electrons = 43 To calculate the mass number and to find…

Q: An isotope of xenon has an atomic number of 54 and contains 77 neutrons. What is the xenon isotope’s…

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Q: How many neutrons are in the nucleus of the isotope at -210?

A: The mass number is comprised of neutrons and protons. Here, the number of protons will be obtained…

Q: An isotope has a mass number of 13 and an atomic number of 6. How many neutrons does this isotope…

A: Number of neutrons =  Mass number - Atomic Number

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

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Q: When the Number of Neutrons Varies?

A: Atomic number (Z)- the number of protons or electrons present in an atom of element called as atomic…

Q: What is the difference between the mass number and the atomic number of an atom?

A: Mass number represents the sum of protons and neutrons present inside the nucleus of an atom.

Q: An unknown element has two naturally occurring isotopes. Isotope 1 has a mass of 121.0 amu and an…

A: Following equation will be used to solve this equation,

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.