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How many atoms are on the tip of a pencil?
It is estimated that there are approximately 2 quintillion (2 x 10^18) atoms on the tip of a pencil. This number can vary depending on factors such as the pencil's length and thickness.
How many atoms on a head of a pin?
There are approximately 1.2 x 10^20 atoms on the head of a pin. This estimate is calculated based on the size of a typical pinhead (about 0.5 mm in diameter) and the average spacing between atoms in a solid material.
How many chromium atoms would have to be lined up to Span 1.0cm if the diameter is 2.2 A?
One Angstrom is defined as 10-10 centimeters. Therefore, the number of any units with a diameter of 2.2 Angstroms that would be required to span 1.0 cm is 1.0/10 -10 or 4.5 X 109 calcium atoms., to the justifiable number of significant digits.
How many atoms are in a 1cm of copper wire and who calculate this?
The number of atoms in a 1cm length of copper wire can be calculated using Avogadro's number, which is approximately 6.022 x 10^23 atoms per mole. The molar mass of copper is around 63.55 g/mol, so you would find the mass of copper in 1 cm of wire and then convert that to moles to determine the number of atoms.
How many atoms are in one sponge?
No one knows how many atoms are in a sponge. There has to be billions of atoms because in one strand of your hair there is about a million atoms.
How do you find the thickness of a molecule?
we dont find thickness of molecule we find the radius of it vander waal radius for gases. first of all we take a beaker (all dimension are known), then we inject molecules of substance but a uniform flow and with the use of atomizer these atoms or molecules settle down on the bottom of beaker layer by layer when we get full bottom covered with molecules then we find thickness of the layer and estimate no. of atoms in layer with the help of different methods and the we divide it with estimated no. of atoms this way we find the diameter of atoms or molecule then we just divide it by 2. more precisely scientist take extreme precautions while performing the above experiments.
How can they estimate the number of atoms in the universe?
The no. of atoms in the Universe is not estimated yet because till now we are not able to calculate the amount of matter present in the universe and what is the exact percentage of each element in the universe. Once it is calculated, scientists would be able to calculate the no. of atoms in the universe.
How many atoms are on the tip of a pencil?
It is estimated that there are approximately 2 quintillion (2 x 10^18) atoms on the tip of a pencil. This number can vary depending on factors such as the pencil's length and thickness.
How many atoms on a head of a pin?
There are approximately 1.2 x 10^20 atoms on the head of a pin. This estimate is calculated based on the size of a typical pinhead (about 0.5 mm in diameter) and the average spacing between atoms in a solid material.
What is the unit of measure of measure for the diameter of atoms?
Given an atom with diameter of 100 picometers, the diameter in inches is 4 nano inches.
How many atoms thick is aluminum foil?
Aluminum foil is typically around 0.2 atoms thick. At this scale, we are dealing with the thickness in terms of angstroms (1 angstrom = 0.1 nanometers). So, the thickness of aluminum foil is very small, at the atomic scale.
How many molecules fit into the universe Estimate please?
The number of atoms in the universe is estimated at 1078 to 1082. So the number of molecules would be smaller than this, obviously. Reference: http://www.universetoday.com/36302/atoms-in-the-universe/
What has a diameter of about one ten-thousand-millionth of a meter?
atoms
How many chromium atoms would have to be lined up to Span 1.0cm if the diameter is 2.2 A?
One Angstrom is defined as 10-10 centimeters. Therefore, the number of any units with a diameter of 2.2 Angstroms that would be required to span 1.0 cm is 1.0/10 -10 or 4.5 X 109 calcium atoms., to the justifiable number of significant digits.
How many atoms are in a 1cm of copper wire and who calculate this?
The number of atoms in a 1cm length of copper wire can be calculated using Avogadro's number, which is approximately 6.022 x 10^23 atoms per mole. The molar mass of copper is around 63.55 g/mol, so you would find the mass of copper in 1 cm of wire and then convert that to moles to determine the number of atoms.
How many atoms are in 1.62 moles Nickel?
The definition of one mole is: It is a number (eg. of particles of any kind), like pi is a number (of ratio from diameter to circle).It is a very big number, symbolised as NA (and named after Avogadro):NA = 6.022 * 1023 (-/mol) or (mol-1)So there are 1.62 * NA = 9.76 * 1023 atoms in a mole(it is not important of what kind the atoms are).
How do you calculate atoms?
As in number? No of atoms = avagadros number (6.02X10^23) times number of mole of atoms
