What is the mass of an electron? Which is smaller, an atom or a cell?
What Is The Mass Of An Electron?
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What is the mass of an electron?
The rest mass of the electron is 9.1093837015 × 10−31 kg, which is only 1/1,836 the mass of a proton. An electron is therefore considered nearly massless in comparison with a proton or a neutron, and the electron mass is not included in calculating the mass number of an atom.
Which is smaller, an atom or a cell?
An atom has an average diameter in the order of a few Angstroms, which is 1/10,000,000 of a millimeter.
The smallest cell has a diameter of 0.1 micrometer (1 micrometre = 1/1,000 millimetre. So 0.1 micrometre = 1/10,000 millimetre) or 1,000 times the size of an atom.
So the answer is quite obvious.