In the early 19th century, a chemist named John Dalton proposed the first atomic theory of atoms. And what does the Theroy state Please Have explanation to Please! ^^

Question

In the early 19th century, a chemist named John Dalton proposed the first atomic theory of atoms. And what does the Theroy state?

AnswerThe theory stated that all matter is made of atoms that cannot be divided or destroyed. It also explained that all atoms of a given element are identical in mass and properties.

Explanation:

His atomic theory was the most plausible explanation of matter at the time. It was backed with extensive testing and scientific evidence. However, as time passed our technology improved, and new discoveries were made. Dalton's atomic theory was modified to fit the new evidence.

Thereofore, I hope this helps!

The problem here is that according to aufbau principle before 3d orbital 4s subshell comes.after filling 3p orbital with electrons you have 4 electrons left, you place two in 4s with opposite spin and the other two in 3d in any of its two orbitals of total five orbitals with the same spin.

The name for subatomic particles in an atom is called a proton