According to de Broglie hypothesis, a particle of momentum p has an associated wavelength of:
Aλ = hp
Bλ = h/p
Cλ = p/h
Dλ = h²/p
Question 3
The atomic number of an element represents the number of:
ANeutrons in the nucleus
BProtons in the nucleus (equals electrons in neutral atom)
CNucleons (protons + neutrons)
DElectron shells
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