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Class 10 > Learn Class IX-X Tuition > What is the diameter of Hydrogen?
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What is the diameter of Hydrogen?

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10 power -10 m that belongs to H2 ATOM
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B.Tech (IIT)

2*0.529 A
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Passionate Educator

You can look up the covalent radius of hydrogen (37 pm), and double it for the diameter. Or you can calculate the radius from Bohr's expression for the orbital radius of a hydrogen atom in the ground state: r=?2kee2mer=?2kee2me where ?=h2??=h2?, keke is the Coulomb constant, e is the charge on...
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You can look up the covalent radius of hydrogen (37 pm), and double it for the diameter. Or you can calculate the radius from Bohr's expression for the orbital radius of a hydrogen atom in the ground state: r=?2kee2mer=?2kee2me where ?=h2??=h2?, keke is the Coulomb constant, e is the charge on the electron and meme is the electron mass. This expression evaluates to 53 pm, so from this the diameter of a hydrogen atom would be 106 pm. Now, the diameter will vary somewhat based on whether the atom's in its ground state: excited states put the electron further out and are therefore larger. The covalent radius is quite a lot less than the Bohr radius because hydrogen atoms in molecules tend to be just little bumps on their neighbors. The internuclear distance for H2 is 74 pm, so you see that the covalent radius of hydrogen is 1212 of that. read less
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BE(Electronics)

A hydrogen atom has a diameter of approximately 1.06 multiplied by 10-10 m, as defined by the diameter of the spherical electron cloud around the nucleus. The hydrogen nucleus has a diameter of approximately 2.40 multiplied by 10-15 m.
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Chemistry Expert

The radius of hydrogen atom is 53 pm (picometer) .The diameter will be around 106 pm. To be precise it is 120pm
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A hydrogen atom has a diameter of approximately 1.06 multiplied by 10-10 m, as defined by the diameter of the spherical electron cloud around the nucleus. The hydrogen nucleus has a diameter of approximately 2.40 multiplied by 10-15 m.
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120pm
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Expert Tutor in Maths , CBSE, IGCSE, ICSE, SSC , All Boards

hydrogen atom 1.06e-10 m / hydrogen nucleus 2.40e-15 m = 44167 X's as large 100 yards @ 0.9144 metres / yard @ 1000mm/metre = 91,440 millimeter with the nucleus being 44,167 times smaller: 91,440 mm / 44167 = 2.07mm your answer is: 2.07mm is the diameter of the nucleus in millimeters, if...
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hydrogen atom 1.06e-10 m / hydrogen nucleus 2.40e-15 m = 44167 X's as large 100 yards @ 0.9144 metres / yard @ 1000mm/metre = 91,440 millimeter with the nucleus being 44,167 times smaller: 91,440 mm / 44167 = 2.07mm your answer is: 2.07mm is the diameter of the nucleus in millimeters, if the diameter of the hydrogen atom was 100 yards (b) The atom is how many times larger in volume than its nucleus volume = 4/3 pi r^3 volume of the atom @ diameter of 1.06e-10 m = 8.8247e-21m3 volume of the nucleus @ diameter of2.40e-15 m = 4.5239e-30 m3 8.8247e-21m3 / 4.5239e-30 m3 = your answer: 1.95e9 times larger read less
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A hydrogen atom has a diameter of approximately 1.06 x 10-10 m The hydrogen nucleus has a diameter of approximately 2.40 x 10-15 m.
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1.06x10^-10 m
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