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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.
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∙ 12y ago
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∙ 10y agoThe element with atomic number 75 is Rhenium (Re).
It has two isotopes with mass numbers of 185 and 187.
Number of Protons/Electrons in Rhenium : 75 .
Number of Neutrons in Rhenium : 110 or 112 depending on the isotope.
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∙ 9y agoBromine is a none metal element. atomic number of it is 35.
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∙ 15y agoName: Rhenium
Symbol: Re
Atomic number: 75
Atomic weight: 186.207
Standard state: solid at 298 K
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∙ 14y agoArsenic, which has an atomic weight of 74.9216.
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∙ 9y agoArsenic is the element that has a mass number of 75. Arsenic is a very toxic element to living organisms.
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∙ 14y agoRhenium has an atomic number of 75.
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What is the atomic number of rhenium?
Rhenium, with the chemical symbol Re, is the chemical element with the atomic number 75.
What group number is arsenic in?
Arsenic As. 33(Atomic Number) 75(Relative Atomic Mass)
How many protons are in rhodium?
Rhenium has 75 protons, 75 electrons and 111 neutrons.The number of protons is equal to the number of electrons.Neutrons can be calculated by subtracting the number of protons from the atomic weight.In this case atomic number is 186 ==> the nr of neutrons = 186-75=111.
Which element has 42 protons?
An element's atomic number gives its number of protons. Checking the periodic table, we see that molybdenum is the element with the atomic number of 42. Thus molybdenum has 42 protons in its nucleus.
What element has more than 50 but less than 75 protonsand it is in group 17?
That would be iodine with an atomic number of 53. The next group 17 element is astatine with atomic number 85.
What is the atomic number of rhenium?
Rhenium, with the chemical symbol Re, is the chemical element with the atomic number 75.
How do you find the number of proton and atomic number in the mass number 75?
You have to know the element with the mass number of 75. Then you would look it up on the periodic table to find the atomic number, which is the number of protons.
What group number is arsenic in?
Arsenic As. 33(Atomic Number) 75(Relative Atomic Mass)
How many protons electrons and neutrons does an atom with atomic number 50 and mass 125 contain?
Protons = Atomic Number = 50 Neutrons = Atomic Mass - Atomic Number = 125 - 50 = 75
How many protons does an atomic number 33 and a mass numb of 75 have?
42
How many protons are in rhodium?
Rhenium has 75 protons, 75 electrons and 111 neutrons.The number of protons is equal to the number of electrons.Neutrons can be calculated by subtracting the number of protons from the atomic weight.In this case atomic number is 186 ==> the nr of neutrons = 186-75=111.
How do you Calculate mass percent of phosphorus in PCl3?
First find the atomic numbers of phosphorus and calcium (x3) Then add the numbers together to find the overall atomic number Next divide the atomic number of phosphorus by the overall atomic number and multiply by the number. P=15 Cl=20x3=60 60+15=75 15/75= 0.2x100=20% I think this is right, hope it helps
What is arsenics mass number?
Arsenic is a non metal element. Atomic mass of it is 75.
Which element has 42 protons?
An element's atomic number gives its number of protons. Checking the periodic table, we see that molybdenum is the element with the atomic number of 42. Thus molybdenum has 42 protons in its nucleus.
What is mass number of arsenic?
Arsenic is a non metallic element. Mass number of it is 75.
What element has more than 50 but less than 75 protonsand it is in group 17?
That would be iodine with an atomic number of 53. The next group 17 element is astatine with atomic number 85.
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.
