who is the scientist that gave us the photon as a way of describing light as a particle?

The scientist was Albert Einstein.

In 1905, Einstein proposed that light energy is delivered in discrete packets, or “quanta,” when he explained the photoelectric effect.

Those quanta of light are what we now call photons , and this particle- like description of light was a key step in developing quantum theory and the idea of wave–particle duality.

So, the scientist who “gave us the photon” as a way of describing light as a particle is Albert Einstein.

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