A helium nucleus has two protons and two neutrons. Howmany electrons would it take to equal the mass of a heliumnucleus?

Q: Estimate the optimal number of neutrons for a nucleus containing 70 protons.

A: The neutrons and protons, the contents making the nucleus of an atom determine its stability.…

Q: In what ways are isotopes are alike? In what ways are they different?

A: Isotopes are the atoms of same element having the same atomic number.

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: Can neutrons in the nucleus of a particular element do vary ?

A: Atom consist an nucleus having positive charge. Nucleus consist proton and neutron.

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

A:

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: 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: The isotope with 15 protons and 14 neutrons is? The isotope with 9 protons and 8 neutrons is? The…

A: As we know, Mass number of an atom = number of protons +the number of neutrons Atomic Number of an…

Q: What isotope has 18 protons and 22 neutrons?

A: Isotopes are different forms of same element, having same number of protons in the nucleus but…

Q: How are isotopes of a particular element alike? How are they different?

A: Isotopes are atoms of the same element that have different numbers of neutrons but the same number…

Q: "the atom with 38 protons and 49 neutrons"

A: Given,        Number of protons = 38         Number of neutrons = 49  Assume an atom is 'X'

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: An isotope that contains 51 protons, 51 electrons, and 74 neutrons. What is its two notations?

A: Isotopes are those elements which have same atomic number but different mass number.   Atomic number…

Q: Antimony Sb has two stable isotopes 121 Sb (at mass 120.904 amu) with a natural abundance of 57.36 %…

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Q: The isotope of Nitrogen with a mass of 15amu is written as _? The isotope of Uranium with a mass of…

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Q: For the 19O2- Isotope identify the number of Protons,  Neutrons,  Electrons

A: For a general element, XZA Z- atomic number = number of protons A- mass number = number of protons +…

Q: a. How many protons are in the nucleus of the isotopeRn-220?b. How many neutrons are in the nucleus…

A: a) The number of protons in the nucleus of Rn-220 has to be given, The number of protons is equal to…

Q: What is the mass number of an isotope

A: Mass number is equal to sum of mass of atomic number and number of neutron

Q: Indi cate of protons and neutrons in the following nuclei: the number b) 201 Hg

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Q: 28. Which of the following descriptions in incorrect? (1)A proton has a positive charge and is…

A: To find: The false statement: (1)A proton has a positive charge and is located in the nucleus (2)A…

Q: Does an isotope have the same number of protons or neutrons?

A: Isotopes = Element with same Atomic No but different atomic mass are termed as Isotope  e.g. Two…

Q: An isotope of uranium is 238U. How many protons, neutrons and electrons are in this isotope?

A: Atomic number (Z) is defined as number of protons present in an atom.  In a neutral atom number of…

Q: Gold has one stable isotope, whichis gold-197, with an atomic mass of 196.97amu. A 14k (14-karat)…

A: Given:   Mass of 14k gold =  5.00-g  Gold percentage  = 58.3%  Other metals        = 41.7% To find:…

Q: Explain how the isotopes of an element are alike and how they are different.

A: An atom is composed of protons, electrons, and neutrons. The protons and neutrons are present in the…

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

A: The correct answer is given below

Q: Determine the number of protons and the number of neutrons in isotope. 22286Rn

A: An element consists of same type of atoms. An atom is composed of certain sub-atomic particles;…

Q: What is the mass number of an isotope with an atomic number of 57 and that has 72 neutrons?

A:

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: Colbalt -61 is used in the medical treatment of cancer. How many neutrons and protons are contained…

A: Given, Cobalt -61 is used in the medical treatment of cancer.we are asked to determine the number of…

Q: An 18 O atom contains the same number of protons. neutrons, and electrons.

A: Given atom, 8O18

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.