An element 'A' contains 15 protons, 15 electrons and 16 neutrons. it is |. It becomes when it has 15 protons, 18 electrons and 16 neutrons.

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: The first atoms of seaborgium (Sg) were identified in 1974.The longest-lived isotope of Sg has a…

A: (a) we are asked to give the of protons electrons and neutrons in the given atom 266Sg  The number…

Q: Give the nuclear symbol (isotope symbol) for the isotope of bromine, Br, that contains 46 neutrons…

A: The atomic number of bromine is 35. Given that the isotope of bromine which contains 46 neutrons per…

Q: 32. An ion of a hypothetical element (let is call it Sycamorium, Sy) can be denoted by the notation…

A: The species neutron number will be equivalent to the difference linking the species mass number and…

Q: Isotopes are atoms with the same mass numbers but different atomic number. O True False

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Q: Two isotopes of rubidium occur naturally, Rb-85 at 72.17% (84.91 amu) and Rb-87 at 27.83% (86.91…

A: Given, two isotopes of rubidium as follows,Rb-85 at 72.17% (84.91 amu) and Rb-87 at 27.83% (86.91…

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: A helium nucleus has two protons and two neutrons. Howmany electrons would it take to equal the mass…

A: ANSWER

Q: Chemistry: Fundamentals and Principles Davidson presented by Macmillan Learning For each set of…

A: For a neutral atom, Atomic number = Number of protons = Number of electrons and Mass number = Number…

Q: A natural sample of chromium, taken from the ground,will contain four isotopes: Cr-50, Cr-52, Cr-53,…

A: Chromium has four stable isotopes which are Cr-50, Cr-52, Cr-53, and Cr-54. Isotopes are the atoms…

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: What element has a symbol of K?

A: An atom is the basic and fundamental unit of matter. An atom consists of electron and the nucleus in…

Q: If an atom has 35 protons in the nucleus,how many electrons will it have orbiting the nucleus?

A: An atom contains three sub-atomic particles. These are protons, neutrons and electrons.

Q: Roughly speaking, the radius of an atom is about 10,000times greater than that of its nucleus. If an…

A: The radius of the atom in miles has to be given,

Q: If an atom were 4.5 football fields long, the nucleus would be the size of   a. a grape seed.   b.…

A: Given: Atom is 4.5 football field long To determine: Size of nucleus

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: Are electrons, protons, or neutrons the smallest particles? If not, what are?

A: We need to determine wheather  electron, proton or neutron are the smallest particle or not.

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: Given that Isotope Mass (amu) Relative Abundance 100Ru 99.9 48% 99Ru 98.9 52%   To…

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: The elements in Groups 1A(1) and 7A(17) are all quite reac-tive. What is a major difference between…

A: The elements of group 1A and group 7A are reactive elements that form many compounds.

Q: the number of protons in an atom is equal to the atomic number true or false?

A: Given statement :- The number of protons in an atom is equal to the atomic number  To determine :-…

Q: An element from the Periodic Table is shown below. The atomic mass is given. A) Give the Name,…

A: The answer is given as follows

Q: A carbon-12 atom has a mass of 12.00000 amu. The mass of a proton is 1.00728 amu, and the mass of a…

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Q: Enter the appropriate symbol for an isotope of phosphorus-32 corresponding to the isotope notation…

A: The term isotopes can be defined as the variants of a given chemical element that differ in neutron…

Q: 13. Which pair represents isotopes? a. He and »He b. seFe and sa:Mn c. Si and suP 14. Which pair…

A: Identify isotopes pair among them --

Q: To the right is a representation of 50 atoms of a fictitious element called westmontium (Wt). The…

A: No. of atoms of each isotope are as follows: Wt-296 (red) 36 Wt-297 (blue) 2 Wt-298 (green)…

Q: Atoms of a specific element that have the same number of protons but a different number of neutrons…

A: An atom is made up of protons, neutrons, and electrons. Protons and neutrons together called…

Q: An element 'A' contains 4 protons, 4 electrons and 5 neutrons. it is + . It becomes when it has 4…

A:

Q: 1.What are the properties og subatomic particles?

A: Given : Subatomic particles To find : Properties of subatomic particles  Solution : Everything is…

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: Complete the following shorthand notations: ? (р, а) $Li 31p (a, ?) 1čS 242Cm (a, n) ? Mg (? ,p) iNa…

A: To find: The complete shorthand notation for the given compounds

Q: [d] Do the same with these five words: beta, neutron, uncertainty, decay, electron.

A: [c] Write a single sentence, using all of these five words plus other words, that makes scientific…

Q: a) How many protons, electrons, and neutrons are in an 266 Sg atom? (atomic mass = 266) b) Atoms…

A: Elements are the species which consist of only one kind of atoms. In other words, species which…

Q: Select the single best answer. For this pair of elements (F and Se), predict which one has more…

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: Why are atoms, neutrons, and protons not considered elementary particles? and why is electrons…

A: Atoms are the basic building blocks of any element.

Q: Boron-10 and boron-11 are the naturally occurring isotopes of elemental boron. If boron has an…

A: Boron-10 and boron-11 are the naturally occurring isotopes of elemental boron. If boron has an…

Q: Elemental boron is composed of 2 isotopes, boron-10 and boron-11  (A) how many  protons and neutrons…

A: (A) Isotopes are the atoms of same element having the same atomic number. They have the same number…

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: 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: A certain element with three naturally occurring isotopes is found to have an average atomic mass of…

A: The percent abundance of an isotope is the ratio of the amount of an isotope of an element and the…

Q: An element 'A' contains 4 protons, 4 electrons and 5 neutrons. it is It becomes • when it has 4…

A: The question is based on the concept of atomic structure. by looking at proton,  neutron &…

Q: An element 'A' contains 4 protons, 4 electrons and 5 neutrons. it is •. It becomes • when it has 4…

A:

Q: For the following atoms, give the number of protons, neutrons, and electrons: I Review I Part D 197…

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Q: This homework is going to center around a completely made up element - Maplenium. This metal has a…

A: Please find the solution below: