Atomic numbers.
The first person to suggest the existence of atoms was Democritus.
Atoms of the same element that have different masses are called isotopes of the element. The presence of different numbers of neutrons in the nucleus is responsible for the existence of isotopes of an element.
it is true
Scientists study molucles under a microscope in order to determine what atoms make up the molucle. For example, if you looked at a carbon dioxede molucle under a microscope you would see that it`s made of one carbon atom and two oxygen atoms. This is my first quistion so I hope I helped!
Adams and Le Verrier predicted the existence based on calculations. In 1946 Neptune was discovered.
It was Lowell
Neptune
Mendeleev (or at least predicted its existence)
Atomic numbers.
You think probable to Dimitri Mendeleev.
This was the Greek philosopher Leukippus and then his successor Democritus.
Percival Lowell actually predicted existence of Pluto, so he organized the search for the existense of Pluto organization.
I think Democritus first posited the existence of atoms.
neptune's gravitational effect on the orbit of uranus
Atoms are important because they make up everything in existence. Every object you can find will be made of atoms.
The law of definite proportions, the law of conservation of mass, and the law of multiple proportions all provide evidence for the existence of atoms.