Discoveries take place by chance but when you try to understand something else. Ancient alchemists wanted to make gold from other metals and by the way the next generation scientists experimented and postulated atomic structure revising and improving the knowledge from time to time. The alchemists may not exist but science branched out into myriad sciences and technologies. It all started from philosophy of matter. Bohr model is considered to be the first and foremeost affirmative postulate to describe the atomic structure.
PS: This answer needs improvement from physicist and chemist point of view.
Another scientist would have to 'discover' it again. For example, say I invented a flying car, but kept the special rocket fuel formula a secret. Someone else would look at my work and be able to figure it out, or they would do trial-and-error to figure it out.
Look up Archimedes.
Scientist use physics for all sorts of things. Scientist can use Newtons and other gravity-related laws to work out the trajectory of a crashing satellite. If scientist wanted to, he could look use molecular physics to predict how chemicals will react. Scientist is a pretty cool guy.
If a uranium-244 atom undergoes alpha decay, it will become an atom of thorium-240. If we wrote an equation, it might look like this:92244U => 90240Th + 24He++The uranium-244 is transmuted into throium-240, and the alpha particle, which is a helium-4 nucleus (and represented as such) emerges at the tail end of the equation.
It cannot be seen with visible light. but it is believed to be spherical.
the number of neutrons in each atom is not the same
Look at its atomic number in a periodic table.
Because as the technology became more hightech the scientist could look closer at the way the atom looks.
They might eat chicken
polar bears
Look at it's atomic number. That shows the number of protons it contains
Another scientist would have to 'discover' it again. For example, say I invented a flying car, but kept the special rocket fuel formula a secret. Someone else would look at my work and be able to figure it out, or they would do trial-and-error to figure it out.
Look at a clarinet and you might eventually figure it out.
So he/she could look at the data again if something goes wrong.
What Does Aluminum atom look like
So he/she could look at the data again if something goes wrong.
To find DNA a scientist must look inside a cell's nucleus.