Why does silicon not commonly form double bond with oxygen as carbon does?​

How are elements arranged in a periodic table

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?

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure