Yeah, I'm sure I will get interference pattern. Waves do reflect but will particle-waves reflect too? When a water wave reach double slit in some of it reflects some of it go in slits but an electron wave can't divide into 2 things so when it reflect whole electron is reflected, I wonder if an electron wave will ever reflect? If you don't know the answer it's okay probably 99.9% people don't just don't comment about my curiosity or the quality of the question!

Yes, I'm asking how many particles are absorbed/reflected, I never saw an information about that. And it occured to me if there is an interference pattern(when particle act as a wave) will it always find its way through slits or some will just reflect as particles do. Not asking for exact statistics but is there %100 or %0 or between them.

@Qmechanic Thanks for editing. Also possible dublicate question is better than mine and its answer is really good. Recommended for curious ones.

Great answer. Now I started to see the question in another angle.

Thank you for your answer. It just started a fusion of question in my mind. :)

According to your comments if I'm not wrong a 0,6μm wavelength photon have 3.31e-19 Joules and from m= E/c2 , the m would be 1.023e-33 gram. Thank you for your inspirations.