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Questions tagged [nuclear-chemistry]

This tag should be applied to questions about processes where elemental compositions are changed due to nuclear reactions.

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1answer
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Collison of two alpha particlesre

I was reading on nuclear chemistry - in particular, the bombardment of nuclei with alpha-particles - and was wondering what the effect of $\ce{^4_2He + ^4_2He -> ^8_4Be}$ would be. My instinct ...
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2answers
47 views

Why does atomic charge not balance in nuclear reactions?

In the discovery of neutron, the bombardment of beryllium with alpha particles is well known. $$\ce{^9_4Be + ^4_2He^2+ -> ^12_6C + ^0_1n}$$ I don't understand how the electrons add up. As alpha ...
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1answer
42 views

Nuclear Fusion and the worlds water supply

First off, I'm probably missing an important part of the argument regarding nuclear fusion. What I think I know about it; Nuclear fusion (using heat instead of gravity) is taking Deuterium and ...
0
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1answer
29 views

Would then base react with water? [closed]

Imagine you fill a tank with undecayed neutrons and water .Now neutrons will decay into proton and electrons. Assume that the wall of the container is so thick that it doesn't allow the protons to ...
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1answer
29 views

How does protium fusion produce helium? [closed]

In stellar nucleosynthesis, how is helium produced from a protium atom that has no neutrons?
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1answer
73 views

Separating specific components of a PUREX raffinate

The PUREX extraction in nuclear fuel reprocessing leaves behind a nitric acid raffinate full of (mainly) 'fission products', which are a diverse set of elements produced by fission in a nuclear ...
2
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1answer
117 views

Which element has the highest binding energy per nucleon

The graph of binding energy per nucleon (Hyperphysics) seems to peak at Iron-56. However, Wikipedia says that Nickel-62 has the highest binding energy per nucleon of any known nuclide (8.7945 MeV). ...
0
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1answer
53 views

Regularity of electron configuration for heavier atoms [closed]

Edit: Is there structure in the nucleus that might be responsible for part of the regularity of the (ground-state) Aufbau process? The periodic addition of electrons is more than one might naively ...
0
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2answers
62 views

How much ionising radiation is released during an atomic blast?

I've been looking for how much ionising radiation is produced during an atomic blast (as a percentage). I have seen a claim of 5% of the energy in an atomic blast is ionising energy (Wikipedia), but ...
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0answers
37 views

As an atom get's bigger (on increasing atomic no.) , electrons have to move faster and faster around the nucleus, Why?

Does speed even make sense at such small scales ? Heisenbergs Uncertainty principle ?
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1answer
22 views

Unstable or radioactive as a property?

What is better term for describing a chemical element; "radioactive" or "unstable"? I am leaning towards the "unstable", because it seems to me that it better describes nature of the element, as ...
0
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1answer
51 views

How does beta decay increases the stabilization of the nuclei?

How does beta emission by a nuclei increases the general stability of it? I surely am not a specialist or anything, but this just don't make sense to me, since the objective of radiation is to release ...
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2answers
51 views

how to display diffusion to a young audience?

I need to display some science topic pertaining to the atomic bombs, or atomic history in some way to children of approximately middle school level. So I've decided that something interesting to cover ...
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0answers
42 views

Is it plausible to draw an enthalpy diagram for a nuclear reaction? [closed]

For a project I am required to draw a enthalpy diagram for the conversion of thorium-232 to uranium-233 and I am unsure on how to proceed. I understand a certain amount of energy is lost through beta ...
1
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1answer
85 views

Why can't a reverse fission reaction be automatically classified as a nuclear fusion reaction?

$$\ce{_2^4He + _13^27Al -> _15^30P + _0^1n}$$ Will this reaction qualify as a nuclear fusion reaction? The answer to this question in the test says that it won't, yet it seems to be the reverse of ...
16
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2answers
796 views

Is it possible to speed up radioactive decay? [closed]

I’m aware that elements like $\ce{^14C}$ have a known half-life, which means that over a span of roughly $5730$ years, half of the $\ce{^14C}$ atoms decay into $\ce{^14N}$. Are there any substances ...
5
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1answer
160 views

Why do Alpha particles not collide with electrons during alpha decay? [duplicate]

Alpha particles are positively charged, so my question is that during alpha decay, when these are released from the nucleus, why doesn't it ever occur that they collide and grab an electron or two ...
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3answers
716 views

Can you decay to half an atom?

In school we are learning about half-life, and I was wondering if it is possible to decay to half an atom?
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2answers
145 views

Could you make a helium atom from hydrogen gas? [closed]

Hydrogen gas is $\ce{H2}$, and contains 2 electrons and 2 protons. My question is, with sufficient pressure, could you fire two neutrons at the molecule and have them form a single Helium atom?
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1answer
762 views

Can't silver have 61 neutrons? [closed]

What happens if silver does have 61 neutrons?
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3answers
21k views

Is iron the most stable element in the periodic table?

According to the binding energy per nucleon vs mass number graph, it is observed that iron-56 has the maximum value of binding energy per nucleon ($\pu{8.75 MeV}$). It means that iron-56 is the most ...
1
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1answer
566 views

Container to minimise radiation exposure from U-238

Consider a sample of uranium-238 that is undergoing decay to thorium-234. During the transmutation, a gamma ray is emitted from the nucleus. However, the thorium-234 daughter particle does not decay ...
8
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2answers
224 views

What is the reason behind choosing the specific elements used for the synthesis of heavier elements?

The following has been derived from the wiki page "Extended periodic table" and is one of the many examples d or f block elements being used in synthesizing new heavier elements (or at least this is ...
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4answers
485 views

Can nuclear fission or fusion occur together with bond formation in a reaction?

Is it possible for a nuclear reaction to occur simultaneously with a chemical reaction involving bond formation? Can anyone suggest an example of this, please?