What is the mass of a piece of chromium metal that has a volume of 11.1 cm cubed?

In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?

What if it is did darwin used to support his theory of evolution

What element has similar physical and chemical properties as boron.