All Questions
30
questions
2
votes
4
answers
2k
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In helium-2, would each electron experience a single positive charge from the nucleus?
If we have an atom of hydrogen-1, we know that there exists one proton with one electron and in helium-2 two protons with two electrons. My question is that do protons get shared equally with ...
user53048
1
vote
3
answers
1k
views
Formation of Hydrogen - from a proton and an electron [closed]
If I place a proton and an electron close to each other, can they form an atom of hydrogen? Why or why not? Please explain the scenarios where this is not likely/unlikely.
Personally I doubt it, ...
- 248
3
votes
1
answer
7k
views
Effective Nuclear Charge of Noble Gases
As stated in my textbook, the effective nuclear charge can be calculated by taking the non-valence electrons away from the atomic number, as also stated in the first calculation on Wikipedia: https://...
- 1,381
5
votes
1
answer
171
views
Can it be said that on our planet we have roughly the same number of electrons as we have protons?
My question is quite simple I think. Is it true that we have approximately the same number of electrons as we have protons and the average electric charge of the molecules in our planet is roughly ...
- 167
-1
votes
1
answer
170
views
how do protons in the nucleus of an atom overcome repuulsions [duplicate]
Why don't protons present in the nucleus of an atom repel each other being likely charged ?
- 11
5
votes
1
answer
156
views
Comparing energies of isoelectronic species, but one protonated
Let's say we have the following reaction:
$$\ce{RH -> R- + H+}$$
By modelling it using quantum chemical calculations in the gas phase I would make calculations for both $\ce{RH}$ and $\ce{R-}$, ...
- 2,883
3
votes
1
answer
2k
views
If the atomic number is # of protons, why does emission of a beta (electron) particle increase the atomic number?
Atomic number: the number of protons in the nucleus of an atom, which is characteristic of a chemical element and determines its place in the periodic table.
Beta emission:
$$\ce{^14_6C -> ^14_7N ...
- 2,853
1
vote
1
answer
995
views
What is the reason why protons and electrons do not collide?
can someone give me an intuitive picture of why electrons don't collide with protons?
I know that electrons move in a sort of cloud, which is our 'orbital', and that they mainly behave like ...
- 153
1
vote
2
answers
1k
views
How do valence shell configurations affect attraction and repulsion forces between atoms? [closed]
It seems clear that the electrons of one atom are attracted to the protons of another and that this is the source of attractive forces between atoms. However, it is not clear why an atom with a full ...
- 259
4
votes
1
answer
19k
views
How do scientists count the exact number of electrons, protons, neutrons in the atom? [duplicate]
An atom is very small so it is probably difficult to focus exactly on a single atom. I wonder how scientists count the exact number of electrons, protons, neutrons in an atom of a certain element.
...
- 141
3
votes
1
answer
4k
views
Periodic trends: why is effect of protons greater than electrons?
Why is it that adding protons has a greater effect than electron-electron repulsion on periodic trends like atomic radius and ionization energy (assuming # of shells constant)? It seems that if ...
- 151
2
votes
1
answer
746
views
Can protons be swapped in a chemical reaction?
Can the protons of two elements be swapped in a chemical reaction?
- 21
-3
votes
1
answer
4k
views
Are protons or electrons responsible for the chemistry of an atom? [closed]
Is the question in a correct form? I can't add anything as a comment.
- 111
10
votes
3
answers
4k
views
Why weren't the electrons attracted to doubly charged Helium particles in the Rutherford experiment?
I have a chapter and in it there was a topic on the Rutherford experiment.
It is written that doubly charged helium particles or alpha particles were thrown towards a very thin gold foil and some of ...
- 301
0
votes
3
answers
5k
views
Is it possible to compress an atom to infinite density? [closed]
I know, by nature, normally atoms are stable. But I wonder, if it is possible to compress an atom, say the Hydrogen atom, to infinite density by applying external force? After all, electrons and ...
- 862