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At first we didn't now that the atom existed. It was Einstein who discovered that pollen grains were moving in a glass of water. Why? It was because as he later confirmed that the water particles were pushing it in an unbalanced way. Other scientists later discovered that there are protons, neutrons and electrons in an atom.
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∙ 12y ago
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Why has the model of the atom changed over time?
Improved knowledge of the atom via new experiments and development of new theories (e.g. quantum mechanics).
What is the name of the scientist that developed the quantum mechanical model of the atom?
Erwin Schrodinger invented the model of the atom based on research done by scientists such as Niels Bohr.
Is positive charge spread equally over an atom?
No the postive charge is only concentrated in one spot the atom
What percent of the atom is free space empty of mass?
If the atom's outer boundary is established by the "mean radius of the outermost electron orbital" or something like that, the atom is waaaaaaaaaaay over 99% free space. The hydrogen atom has a diameter over 100,000 times the diameter of the proton in it's nucleus.
How has science changed over time?
The word science derives from the Greek, and means to know. So as our body of knowledge improves, then our statements in science will change.As to examples,a) once upon a time, phlogiston was thought to be responsible for combustion.b) The definition of the length of the metre has changed with better determinants of its measure.c) We now know that an atom is not indivisible.
Why has our idea of what the atom looks like changed so many times?
Our idea of the atom has changed over time as new experimental evidence and theoretical advances have been made. Early models were based on limited information and as technology improved, we discovered more about the structure of the atom. Each new model built upon the shortcomings of the previous one, leading to our current understanding based on quantum mechanics.
How has technology developed over time?
it has just changed
What are some models that changed over the years?
the atom model
What best describes how our understanding of DNA and inherited traits has changed over time?
It was developed by many scientists over many decades.It was developed by many scientists over many decades.
How our understanding of DNA and inherited has changed over time?
it was developed by many scientists over many decades. *apex*
Why has the model of the atom changed over time?
Improved knowledge of the atom via new experiments and development of new theories (e.g. quantum mechanics).
How has our understanding of DNA and inherited traits changed over time?
it was developed by many scientists over many decades. *apex*
Why do you think that the relationship between the Egyptians and Nubians changed over time?
the egyptians developed nukes
Why do you think that the peaceful relationship between the Egyptians and Nubian's changed over time?
the egyptians developed nukes
Why do you think that the peacful relationship between the egyptians and nubians changed over time?
the egyptians developed nukes
Why do you think that the peaceful relationship between the Egyptians and the Nubian's changed over time?
the egyptians developed nukes
Why do you think that the peaceful relationship between the Egyptians and Nubian changed over time?
the egyptians developed nukes
