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Q: 4. The radius of the nucleus of an oxygen - 16 atom is approximately 3.0 fm (femtometers, 1 m = 1015…

A: “Since you have asked multiple question, we will solve the first question for you . If you want any…

Q: IRevie Part B A certain element X has four isotopes. • 4.350% of X has a mass of 49.94605 amu.…

A: Atomic mass of an element can be defined as the mass of a one atom of given chemical element. It is…

Q: Silver has two stable isotopes. It is 51.80% Ag-107 and 48.20% Ag-109. The mass of the Ag-107…

A: In chemistry, the concept of isotopes is fundamental. Isotopes are variants of a chemical element…

Q: If you had a balance that could determine the mass of aproton, how many electrons would you need to…

A: Mass of a proton is 1.67×10-27kg and the mass of the electron is 9.31×10-31kg.

Q: . An element has three stable isotopes with masses of 27.977 amu, 28,976 amu, and 29.973 amu. The…

A:

Q: the number of copper atoms in a 3.0g lump of copper is 2.8x1022. how many electrons are present  in…

A: the number of copper atoms in a 3.0g lump of copper is 2.8x1022.  The number of electrons present in…

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: 10 3- mass #: # protons: # electrons: 56 Fe 26 element: # protons: # electrons: # neutrons:

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: 1)the chemical symbol found on the periodic table is ?  2) the number of protons for the product is…

A: 1.Now we know that the number must be same on both the product as well as the reactant Side and we…

Q: 83 122 Write each isotope symbol Protons Neutrons 31 39 Example Aluminum-27 Protons Neutrons 78 92…

A: We will use number of protons to find atomic number of the element.  No. of Protons = No. of…

Q: Which two atoms are isotopes of one another? Atom #p* # n° #e A 10 8 B 10 9 10 9. D 11 A) A-B B) B-C…

A: Given, Atom no. of protons no. of neutrons no. of electrons A 8 10 8 B 10 9 10 C 9 9 9 D…

Q: C The radius of a nickel atom is 125 pm. How many nickel atoms would have to be laid side by side to…

A: We are given : radius of nickel atom (r) = 125 pm distance (d) = 1.11 mm number of nickel atoms (n)…

Q: (1) The radioactive isotope strontium-81 is used in medical imaging as indicated on the table above.…

A: We have unstable nuclide Strontium-81, which undergoes radioactive decay. We need to discuss the…

Q: Natural carbon, which has an atomic weight of 12.011 amu, consists of carbon-12 and carbon-13…

A: Average mass of an element is defined as the atomic mass of the element calculated by multiplying…

Q: 132xe. 54

A: ->Atomic number = number of proton  -> number of proton = number of electrons (for neutral…

Q: QUESTION 2 Naturally occurring gallium is 60% 69Ga and 40% 1 Ga by mass. Based on this data the…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: CI is an example of O None of them O Isotope O lon O Molecule

A: Given is Cl- and it is asked that which species is this.

Q: How many Se atoms are there in a 82.1 gram sample of Se ?

A:

Q: 13. Which of the following are isotopes? a. P3- and Ar b. 1251 and 127| c. O and O2- d. Na* and K*…

A: b) 125I and 127I

Q: what has more atoms.....  a gram of Cesium or a gram of Hydrogen.  Not sure how to figure it out and…

A: The number of atoms in one gram of cesium is:

Q: Electron- Proton- Atomic number- Atomic mass- Neutron- Nucleus- C. Isotopes or Different Elements?

A: A typical atom is made up of subatomic particles that include electrons, protons, and neutrons.…

Q: has a mass about the same as that of a proton has a-1 charge is found in the nucleus is attracted to…

A:

Q: A neutral subatomic particle. a) compound b) mixture c) molecule d) neutron e) atom

A: An atom is made up of neutrons, protons and electrons. Protons are positively charged and electrons…

Q: Neutral particles are called: Particles that have a charge are called: Particles of the same element…

A: Here is the answer

Q: 17. Write the atomic mass for Carbon to 3 significant figures.

A: Carbon is non metal  Carbon Symbol is C  Carbon atomic number  is 6  Carbon electronic configuration…

Q: 270, How many protons and neutrons are in an atom of 'Db ? Number of protons = Number of neutrons |…

A: Given  Element = 270 Db Number of proton   = ?  Number of neutron = ?

Q: 5.) Usina ave rage atomic massos elenents ai125 carbon for ,calculatie the meess of each atoms b.5…

A: ***As per Bartleby's guidelines, I can solve only the first three questions. You can resubmit the…

Q: A sample of aluminum foil contains 9.00 x 1023 atoms. What is the mass of the foil? mass: Do

A: The number of atoms contained in aluminum foil is 9.00×1023. The relationship between moles, molar…

Q: Which part of the atom has most of mass ?

A: Most of an atom's mass is in its nucleus.

Q: How many V atoms are there in a 97.9 gram sample of V ? atoms

A: Mass of sample = 97.9 grams.  Number of atoms of V sample = ?

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.