De Broglie wavelength of the subatomic particle is 0. 0020 * (10 )^ -3 nm.
Any of the multiple self-contained units of matter or energy that are the building blocks of all matter are considered subatomic particles, also known as elementary particles. They include the heavier constituents of the small but extremely dense atom's nucleus, the positively charged protons and the electrically neutral neutrons, as well as the electrons, the negatively charged, nearly massless particles that still make up the majority of the atom's size.
Let the De Broglie wavelength be Λ.
Λ = h/p
= (6.626 * 10^-34) / (351 * 9.11 * 10^-31)
Λ = 0.0020 * 10^-3 nm
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