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: What is the mass number for an atom of mercury containing 80 protons and 118 neutrons?

A: Given, number of protons = 80 Number of neutrons = 118

Q: The nucleus, the massive center of an atom, contains which two particles?

A: Nucleus is the massive part of any atoms . It contains mostly all the mass any element. Nucleus was…

Q: If a nucleus contains 12 protons, how many electrons arein the neutral atom? Explain.

A: An atoms are the smallest indivisible particles of a matter.  Subatomic particles of an atom -…

Q: A radioactive isotope of uranium has 146 neutrons, the total number of nucleons in this isotope of…

A: Uranium consist of three radio-active isotopes- uranium-238 , uranium-235 and uranium- 234. They…

Q: A neutron and a proton combine to form a nucleus why does the mass. Of the nucleus differ from the…

A: Given: A neutron and a proton combine to form a nucleus. And the mass of the nucleus differ from the…

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: 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 atomic masses of nitrogen-14, titanium-48, and xenon-129 are 13.999234 amu, 47.935878 amu, and…

A: Given, the atomic masses of nitrogen-14, titanium-48, and xenon-129 are 13.999234 amu, 47.935878…

Q: What are the atomic number (Z), mass number (A), andsymbols for the iron isotope with 30 neutrons?

A: Given that  Atomic number denotes = Z  Mass number denotes = A  The relation between atomic number Z…

Q: The element copper has two naturally occurring isotopes with masses of 62.9400 amu and 64.9300 amu.…

A: The element copper has two naturally occurring isotopes with masses of 62.9400 amu and 64.9300 amu.…

Q: 38. A helium nucleus has two protons and two neutrons. How many electrons would it take to equal the…

A: The given nucleus is He, number of proton = 2 Number of neutron = 2 Number of electron = 2 The…

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

A:

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: the neutral atoms of all of the isotopes of the same elements have. A. different numbers of protons…

A: Given : Neutral atoms of all isotopes of same elements.

Q: What does the nucleus of an atom consists of?

A: In an atom, three fundamental particles are present, proton, electron, and neutron.

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: How many electrons would it take to equal the mass of a helium nucleus?

A: The helium atom has 2 protons, 2 neutrons and 2 electrons. The mass of helium nucleus depends only…

Q: An atom has a +3 charge a mass # of 42 and 20 neutrons. What is the amount of electrons it has?

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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: TRUE or FALSE: Isotopes are elements that have a different number of protons.

A: All atoms can be identified by the no. of protons and neutrons they contain. The no. of protons in…

Q: Gallium, which has an atomic mass of 69.723 amu, hastwo naturally occurring isotopes, Ga-69 and…

A: Isotopes are variants of a particular chemical element which differ in neutron number, and…

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 proper way to write an atom with 17 protons and 20 neutrons?

A: An atom basically consists of proton, neutrons and electrons. The protons and neutrons are present…

Q: Select H, atomic number 1. How many stable Isotopes ofH exist?

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

A:

Q: What are the atomic number and mass number for the carbon isotope with seven neutrons?

A: The atomic number of the carbon isotope is 6.

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: How many electrons would it take to equal the mass of aproton?

A:

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

A: The correct answer is given below

Q: Enter yeur ansmer in the provided bes. 113 The atemic masses of the two stable isotopes ef indium.In…

A:

Q: How many electrons, protons, and neutrons are there in an atom ofa40Ca?

A: In the atom 40 Ca,  Atomic number = 40  So, proton number = 40  As it is neutral so,  Electron…

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

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Q: What is mass number of a Ne atom that has 14 neutrons?

A: Symbol of an element as listed in periodic table has two numerals written with it. The one on…

Q: 2. Add a neutron to the Carbon-12 nucleus. Observe how the mass number changes. Which particle(s)…

A: Atomic number of an atom = number of protons  For a neutral atom :-  No.of protons = number of…

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: What is the mass of the other isotope of Boron given 11B has a mass of 11.0093 amu and an abundance…

A: Isotopes of boron are 11B and 10B. Average atomic mass=∑mass of isotope×Relative abundance %100 Mass…

Q: Magic numbers are associated with protons and neutrons in a nucleus. State the magic numbers for…

A: There are many factors that give to nuclear stability.  These are, Full nuclear shell (magic…

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.