true or false (h)  All atoms of the same element have the same number of electrons.  (b) All atoms of the same element have the same number of protons. (m)  The three isotopes of hydrogen (hydrogen­1, hydrogen­2, and hydrogen­3) differ only in the number of neutrons in the nucleus. (a) Matter is divided into elements and pure substances.  (b) Matter is anything that has mass and volume (occupies space).  (c) A mixture is composed of two or more pure substances. (l) The combining ratio of 1:2 in the compound CO2 tells you that this compound is formed by the combination of one gram of carbon with two grams of oxygen

Q: An oxygen atom has eight protons. (a) In the following diagram, sketch in the arrangement of…

A: Bohr proposed a model of the atom as a central nucleus containing protons and neutrons being orbited…

Q: In Example 2-1, we established that the mass ratio of magnesium to magnesium oxide is 0.455 g…

A: We have been provided with the ratio of magnesium to its oxide. Let us calculate other required…

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A: Isotope with mass 120.904 and 122.904 is 904 Sb51  and 122.904Sb51. The total atomic mass of Sb is…

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A: Number of protons = Z Number of neutrons = A - Z Here, Z is the atomic number and A is the atomic…

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A:

Q: An ion composed of which of these particles would havea mass of approximately 16 amu and a charge of…

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A:

Q: Atoms of the same type can have different mass numbers. These atoms are called "isotopes". Consider…

A: The detailed solution is given below.

Q: e terms atomic number, mass number, and atomic mass. Then, (ii) explain what isotopes are and (iii)…

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Q: In each case, calculate the appropriate ratio to show that the information given is consistent with…

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Q: 1)    The element gallium (Ga) exists in two isotopic forms with the following abundances: 60.16%…

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Q: The radius of an atom of gold (Au) is about 1.35 Å. (a) Express this distance in nanometers (nm) and…

A: It is given that :Radius of gold atom = 1.35 Å

Q: By one estimate, an electron travels around the nucleus of an atom at a speed of 1.50 x 10^6 m/s.…

A: A) To change m/sec into km/Hr we multipy 18/5 1.5×106×18/5= 5.4×106km/hr

Q: Use the periodic table to give the name and symbol for each of the following elements: (a) the…

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Q: Uranium -235 is the isotope of uranium commonly used in nuclear power plants . How many (a) protons…

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Q: When copper (Cu) and oxygen (O) combine, two different compounds are formed. The first compound…

A:

Q: (a) Atoms are very small compared to objects on the macroscopic scale. The radius of a vanadium atom…

A: (a)Calculate the radius of vanadium atom in centimeters and meters:

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A:

Q: (a) 8 protons, 10 electrons (b) 20 protons, 18 electrons (c) 53 protons, 54 electrons (d) 26…

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Q: Consider an atom of 63Cu. (a) How many protons, neutrons,and electrons does this atom contain? (b)…

A: a. The number of electorns is = 29  The number of protons is = 29 The number of neutrons is = mass…

Q: Write the symbol for each of the following particles. (a) an atom with 13 protons and 13…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Write a symbol for each of the following neutral isotopes. Include the atomic number and mass number…

A: The symbol for each of the neutral isotopes is given below. Mass number = Number of protons + number…

Q: Antimony has many uses, including infrared devices and as part of an alloy in lead storage…

A: a) Notation for each isotope antimony 121 ---->   51Sb121   antimony 123 ---->   51Sb123

Q: atoms of gold (Au) In a 3.7-gram sample, there are (A) 1.1 x 1022 atoms of gold (B) 3.2 x 1025 atoms…

A: Given, mass of Au = 3.7 g Molar mass of Au = 196.97 g/mol