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The atomic number of Re is 75 The atomic mass of one of its isotopes is 186 How many neutrons are in an atom of this isotope?
The atomic mass minus the atomic number equals the number of neutrons. Thus in the case above the number of neutrons would calculate out to be 11. HOWEVER PLEASE NOTE Rhenium (Re) does not have an atomic mass of 86, it has two isotopes one of atomic mass 185 and another of atomic mass 187. Thus the real number of neutrons is 110 or 112.
How many atoms are in 70.620 g of rhenium?
To determine the number of atoms in a given mass of an element, you need to know the molar mass of that element. The molar mass of rhenium (Re) is 186.207 g/mol. To find the number of atoms in 70.620 g of rhenium, divide the given mass by the molar mass, and then multiply by Avogadro's number (6.022 x 10^23). This gives approximately 1.590 x 10^23 atoms of rhenium.
What element has 75 protons in period 6 of the periodic table?
At-Astatine Because it is the 85th element of the periodic table. That means that it has 85 protons and 85 electrons
What are some common uses for rhenium?
Rhenium that is used for flash lamps for photograph. Used for filaments for mass spectrographs and ion gages.
75 element in the periodic table?
The 75th element in the Periodic Table of Elements is called Rhenium (Re) and is pronounced REE-ni-em. It has an atomic mass of 186.21. Rhenium is Transitional Metal and can be found in Period 6 Group 7 on the Periodic Table. Rhenium is one of the rarest metals in the Earth's crust. Some of it's uses include flash lamps for photography and fillaments in in mass spectrographs.Atomic Number: 75Atomic Mass: 186.21Melting Point: 3459 KBoiling Point: 5869 KDensity: 20.8 grams per cubic centimeterPhase at Room Temperature: SolidElement Classification: Transitional Metal
Is the atomic weight of the rhenium?
The relative atomic mass is 186.207
Atomic number 75?
Arsenic (As) has 33 protons, giving it an atomic number of 33 and, in it's most common isotope, it has 42 neutrons. Atomic mass is equal to (number of protons + number of neutrons). 33 + 42 = 75.
What is made of rhenium?
Rhenium is an chemical element with atomic number 75. It is frequently used with tungsten because it adds favorable properties. It is also used for filaments in mass spectrographs.
What is the atomic number of rhenium?
Rhenium, with the chemical symbol Re, is the chemical element with the atomic number 75.
What element has the atomic number of 76?
Rhenium
What is the atomic weight of Rhenium?
186.207 g/mol
The atomic number of Re is 75 The atomic mass of one of its isotopes is 186 How many neutrons are in an atom of this isotope?
The atomic mass minus the atomic number equals the number of neutrons. Thus in the case above the number of neutrons would calculate out to be 11. HOWEVER PLEASE NOTE Rhenium (Re) does not have an atomic mass of 86, it has two isotopes one of atomic mass 185 and another of atomic mass 187. Thus the real number of neutrons is 110 or 112.
How many atoms are in 70.620 g of rhenium?
To determine the number of atoms in a given mass of an element, you need to know the molar mass of that element. The molar mass of rhenium (Re) is 186.207 g/mol. To find the number of atoms in 70.620 g of rhenium, divide the given mass by the molar mass, and then multiply by Avogadro's number (6.022 x 10^23). This gives approximately 1.590 x 10^23 atoms of rhenium.
What element has 75 protons in period 6 of the periodic table?
At-Astatine Because it is the 85th element of the periodic table. That means that it has 85 protons and 85 electrons
What are some common uses for rhenium?
Rhenium that is used for flash lamps for photograph. Used for filaments for mass spectrographs and ion gages.
What element has the atomic number of 74?
If you can locate a periodic table, you can locate "74" and find that it is Rhenium.
75 element in the periodic table?
The 75th element in the Periodic Table of Elements is called Rhenium (Re) and is pronounced REE-ni-em. It has an atomic mass of 186.21. Rhenium is Transitional Metal and can be found in Period 6 Group 7 on the Periodic Table. Rhenium is one of the rarest metals in the Earth's crust. Some of it's uses include flash lamps for photography and fillaments in in mass spectrographs.Atomic Number: 75Atomic Mass: 186.21Melting Point: 3459 KBoiling Point: 5869 KDensity: 20.8 grams per cubic centimeterPhase at Room Temperature: SolidElement Classification: Transitional Metal
