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How many protons are needed for a element to be naturally radioactive?
Wiki User
∙ 6y ago
Whether an ISOTOPE (not element) is naturally radioactive depends not only on the number of protons, but also on the number of neutrons. For EVERY element, there are radioactive isotopes.There has to be a certain relationship between the number of protons and the number of neutrons, but the relationship isn't a simple one.
Wiki User
∙ 6y ago
Wiki User
∙ 6y agoNormally, more than 56
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What element has 46 protons and 55 neutrons?
The number of protons defines an element - the number of neutrons isn't needed to find the identity of the element. All ions and isotopes with 44 protons is ruthenium. However, with the information about the neutrons, we know the specific isotope: 101Ru.
What element has 6 neutrons and protons?
The number of protons defines the element. If an atom has six atoms, then it can only be carbon. If it has six neutrons, then it is 12C.
What is needed for any given element?
An element is defined a "type of atom"; to be more precise, all the atoms in an element have the same number of protons (but not necessarily the same number of neutrons).
Nuclear reactions convert what into energy?
In a Nuclear reaction, an atom of one element changes into another element or into an isotope of the first one, depending on what sort of radioactive decay it undergoes. The Nucleus of every atom contains Neutrons and Protons. All the Protons being positively charged repel each other. Hence a large Nuclear Force called Binding Force acts on all the protons and keeps them forced into the Nucleus. When the number of protons in the nucleus decreases due to a Nuclear reaction, the amount of force needed to hold all the protons in the Nucleus decreases. The remaining force is given out as heat energy.
What does element 115 look like?
Firstly, I assume that this question mentions about the element in the periodic table which has the atomic number of 115. Let us discuss about the atomic structure at first. Basically, this type of atoms must have 115 protons, 115 electrons. According to the tendency of the increase in the number of neutrons in the nucleus, with the atomic number, this element should contain at least 150 neutrons. Additionally, as the atomic number of this element exceeds 84, it must be radioactive and unstable in the nature. Hence, it would not occur naturally even as compounds. So when needed it has to be synthesised using lighter atoms with nuclear fissions.
If a neutral atom of sodium has 11 protons how many electrons does it have?
An element with 11 protons will have atomic number 11, or sodium. If the element has 11 neutrons, then it has an atomic mass of 11+11 = 22. Therefore, the isotope Sodium-22 has 11 protons, neutrons, and electrons.
What is the element with charge if needed with 23 protons 28 neutrons and 18 electrons with a net charge of 3 plus?
No element or ion as stated can exist, because if it contains 23 protons and only 18 electrons, its net charge must be 23 - 18 = 5 plus, not 3 plus.
If an element has 3 isotopes with known natural abundance percentages what other information is needed to find the average atomic mass of the element?
You still need to know the number of protons present in order to find the atomic mass.
What element has an atomic number of 74?
The atomic number is the same as the number of protons. So, from an atomic number of 74, we can conclude that there are 74 protons. One proton cancels out the charge of one electron, therefore, equal numbers of protons and electrons results in a neutral particle. For an atom with 74 protons to be neutral, 74 electrons are needed to balance.
What does it mean oxygen has 8 protons?
In an Oxygen atom's nucleus, there are 8 protons. In a neutral atom, there are also 8 electrons. Oxygen also has an atomic (protonic) number of 8, meaning that it has 8 protons. On the periodic table, elements are listed according to increasing atomic numbers.
What is the radioactive isotope in the periodic table?
A normal periodic table does not list isotopes, but elements, almost all of which occur in more than one isotope, and there is probably at least one radioactive isotope for every element. Instead of the periodic table, a table of nuclides is needed to answer this question.
How many neutrons are in an atom with the mass number being 186?
The atomic number (number of protons) of the element is needed to tell the number of neutrons. Mass number = atomic number + number of neutrons.
