All Questions
14
questions
0
votes
1
answer
53
views
Perforated Cathode in Anode Ray Experiment
While studying about the anode ray experiment (E. Goldstein), I had a doubt pop up in my head. In the experiment, a perforated cathode has been used. What is the exact reason behind that? Upon ...
- 99
2
votes
1
answer
265
views
Measurement of the number of electrons, protons and neutrons inside an atom
How do we measure the number of protons, electrons, and neutrons inside an atom? What experiments can be conducted to determine, for example, that an iron atom contains 26 protons?
- 57
-4
votes
1
answer
237
views
why chemical bond between Na and Cl happens [closed]
We know that if Cl and Na get too close, they produce ionic bonding.
Cl has 17 proton and 17 electrons and is considered stable.
Na has 11 protons and 11 electrons and is considered stable.
I ...
- 119
-1
votes
1
answer
65
views
when would copper material have free electrons [closed]
If you imagine a wire of copper(note that I am not talking about electricity at all). Just only a wire of copper or copper metal or whatever full of copper atoms.
We know that each copper atom has 1 ...
- 119
-5
votes
1
answer
61
views
Are elements made out of many atoms? [closed]
So im reading a chemistry book right now, and always thought an element is made out of ONE atom, with special properties that make it this element.
Amount of Protons, neutrons and electrons.
But this ...
- 1
1
vote
2
answers
747
views
Does effective nuclear charge decrease down the group?
I've read that the effective nuclear charge increases down the group.
This seems incorrect. As we go down the group the number of protons increases and the shielding constant also increases. We can ...
- 221
1
vote
2
answers
150
views
Can there be any substance whose number of electrons and protons are different at neutral state
I want to ask that if there any substance that has the different number of electrons and protons at its neutral state
- 37
1
vote
0
answers
80
views
Why do objects gain electrons? [duplicate]
I have read that objects gain electrons to become negatively charged and also that they lose electrons to become positively charged. I have also read that same charges repel each other and non-same ...
- 119
2
votes
4
answers
2k
views
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
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
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
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
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 ...
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