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The elements above Atomic number 86 generaly redioactive.

As atomic number represents the number of protons,above A.N 86 the elemens will be radio active in specific conditions.exception,C-13 is a radioactive isotope of carbon.

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Q: How many protons does a nuclei need to be radioactive?
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Why must protons collide at such high speeds to fuse into deuterium?

Like charges repel. So to overcome the repulsive force protons do need high energy to perform work against the force of repulsion. Hence high speed


What do you need to do to the proton in order to change the element?

Protons basically determine what type of element you end up with. All you really have to do is add or subtract protons and you will end up with a completely different element. Also removing or adding specific numbers of neutrons can result in radioactive isotopes of that element.


What moves around the nucleus and what is its charge?

the nucleus consists of protons and neutrons. Those are made up of quarks but for a chemistry class you'll probably only need to know the neutrons and protons. The overall charge of the nucleus is how many protons are in the nucleus. To know this all you need is the atomic number of the element. So for hydrogen it is 1 and for oxygen it is 8. The charge of the whole atom is different though. It is the protons- the electrons.


How to find number of protons?

All you need is a periodic table. The atomic number of an element is the number of protons in the nuclei of all of the atoms of that element. So just look for the element on the periodic table, and its atomic number is the number of protons. However, if you don't have a periodic table available, and you've been given mass number, number of neutrons, and/or the number of electrons, you can calculate the number of protons by doing the following: mass number - no. of neutrons = no. of protons no. of electrons in a neutral atom = no. of protons


Should Radioactive isotopes used for medical purpose have long lives?

Radioactive isotopes used for medical purpose should not have long lives. The imaging cameras need to pick up the particles from the decay of the radioactive nuclei, and having a lot within an hour or two means a short half-life.

Related questions

What do a heavy nuclei need to remain stable?

More neutrons than protons.


Is helium a product of radioactive decay?

Yes. Alpha particles can be a product of radioactive decay, and alpha particles are simply Helium nuclei. Unless they interact with other atoms, they will tend to pick up stray electrons (they need two) and become stable 4He atoms.


Why must protons collide at such high speeds to fuse into deuterium?

Like charges repel. So to overcome the repulsive force protons do need high energy to perform work against the force of repulsion. Hence high speed


Can elements be changed into another substance?

Yes, its called transmutation. It is the process by which one element changes into another. This can only be done with a nuclear reaction, but alchemists once believed it might be possible, for example, to transmute lead into gold. They tried many bizarre things, but were never successful. Only nuclear reactions, such as fusion, fission, radioactive decay, etc, can induce a transmutation. Alpha decay is a kind of radioactive decay in which an alpha particle is emitted from an atom. An alpha particle consists of two protons and two neutrons. Therefore, when an atom of an element undergoes alpha decay, it loses two protons, which changes the atom from one element to another. This is because each different element is identified by the number of protons in its atomic nuclei.


Is it true that protons in the nucleus attach themselves to another atom?

No. Not under normal conditions. It is true that protons within the nucleus attract each other due to the residual binding energy left over from the binding energy that holds quarks together to form protons and neutrons, but that force does not extend beyond the nucleus before the electromagnetic force, a repulsive force, would override the residual binding energy. In order to bind protons from different nuclei together, more formally, different nuclei together, you need nuclear fusion, and that requires high temperature and high pressure, first to ionize the atom and strip away the electron shells, and second to bring the nuclei close enough together that the residual binding energy can overcome the electromagnetic force.


How many protons must cross through ATP synthas to produce ATP?

3 protons are need tp produce 1ATP


What do you need to do to the proton in order to change the element?

Protons basically determine what type of element you end up with. All you really have to do is add or subtract protons and you will end up with a completely different element. Also removing or adding specific numbers of neutrons can result in radioactive isotopes of that element.


How many electrons are in Cr-52?

There are 24 protons in Chromium (including Chromium54) of any isotope. Isotopes are just elements with different numbers of neutrons. If it is called chromium it has 24 protons. The atomic number of an element is the same as the number of protons.


Why do atomic nuclei decay?

Isotopes that are unstable are prone to nuclear decay. They decay because the nuclei of the atoms of that isotope are unstable. The instability within the nuclei creates possibilities for a breakdown in the nuclear arrangement with the emission of a particle or particles and/or energy. The particular arrangement of neutrons and protons in the nucleus, i.e., the relative numbers of these nucleons, will predispose some of the isotopes to undergo spontaneous nuclear transmutation. Put another way, the neutrons and protons in a given nucleus might not like being packed in their because there isn't a "happy correlation" between the number of protons and the number of neutrons. If we take a given isotope of a given element and add, say, a neutron, it becomes another isotope. Is this new isotope stable? Does it like the new arrangement or will it be unstable and prone to decay? What if we add another neutron? How about then? How about with another neutron? Get it? It's the same if we start fooling around with the number of protons. Some isotopes of a given element are stable and some are not. There may not be any stable isotopes of a given element, like with radon. Hope this helps.


Does radiation need particals?

No, some radioactive materials are not solids. Most radioactive materials are solids (uranium, plutonium, isotopes of many other materials) Some radioactive materials are gases (Radon) or isotopes of gases (Tritium, carbon fourteen, etc.)


Can you determine whether the atoms are the same element with out looking at the nuclei?

To a certain extent yes. In a balanced element the number of electrons match the number of protons in the core of the element. If electrons have been added or removed (as in an ion) then you would need to know the exact number added/removed, or rebalance the element, in order to determine the specific element.


How many protons and electrons in ion Ag?

What you will need for "How many protons neutrons and electron isotope Ag have?"AgPencilPaperNow:Take pencilTake paperWrite "Too much".And that's it!