0
There are no known stable isotopes of the element with an atomic number of a 56 B 38 C100 D 20?
Opmusic61
Element 20 is Tin.
Element 38 is Strontium.
Element 56 is is Barium.
Element 100 Fermium. Fermium is artificially created, and has no stable isotopes.
In general, there are no stable isotopes heavier than Bismuth (element 83).
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
All isotopes of this element are radioactive?
Radioactive Elements (38) These elements are radioactive. They either have no stable naturally occurring isotope, or else are entirely artificial (all artificial elements have no stable isotopes). by Andrew Moore
What are the atomic number and mass number of bromine?
The mass number is the som of protons and neutrons in the atomic nucleus of a chemical element. Each isotope has a different mass number. For natural isotopes of bromine the mass numbers are 79 and 81.
How many stable nuclides exist for elements that have and atomic number above 83?
All isotopes of all elements with atomic number similar or greater than 84 are radioactive, and don't have stable nuclei.
Is gallium a naturally occurring isotopes?
No. Gallium is an element. The element Gallium has two naturally occuring stable isotopes (69Ga and 71Ga) and abpout 29 unstable isotopes.
What s the atomic number of nickel?
The atomic number of nickel (Ni) is 28. The atomic weight of Ni is 58.70 grams per mole. See the Web Links and the Related Questions to the left of this answer for a periodic table and more information about this element.
Is this a stable element Carbon atomic number 6?
It really isn't elements that are stable or unstable, but isotopes. Carbon has both stable and unstable isotopes.
What is the first radioactive element number?
Of elements that have no stable isotopes, technetium has the lowest atomic number, which is 43.
What does the decimal tell you in an atomic mass?
that there are stable isotopes of that element
Which element has an atomic mass of11?
Atomic mass numbers are not properties of elements overall, but only of particular isotopes of elements. The only stable element with an isotope with mass number 11 is boron. Beryllium and carbon also have isotopes with mass number 11, but these are radioactive.
Is fluorines atomic number 9 when its stable?
All isotopes of fluorine, whether they are stable or unstable, have atomic number 9.
What are the atomic numbers and mass numbers of the stable and radioactive forms?
1. The atomic number is equivalent to the number of protons in the atomic nucleus of a chemical element. The number of protons is identical for all the isotopes of an element. 2. The mass number is the sum of protons and neutrons in the atomic nucleus of an isotope.
What element has most number of isotopes?
Tin or Stannum with 10 stable isotopes
All isotopes of this element are radioactive?
Radioactive Elements (38) These elements are radioactive. They either have no stable naturally occurring isotope, or else are entirely artificial (all artificial elements have no stable isotopes). by Andrew Moore
Which has more isotopes neon -10 or neon-12?
Neon has the atomic number 10 which means it has 10 protons, it cannot have 12. Different isotopes of an element have the same number of protons but a different number of neutrons. There are three stable isotopes of neon.
Does the atomic number of an element determine its mass?
Not by itself. The mass number is the sum of the numbers of protons and neutrons in he nucleus for each isotope of the element, or for elements with more than one stable isotope is an average depending on the natural abundance of the stable isotopes of the element.
Why can't atoms have 182 electrones?
The number of electrons in an atom equals the number of protons in its nucleus and is the element's atomic number. The periodic table does not contain any (stable) elements with 182 protons. It is possible for the isotopes of many elements to have an atomic mass (protons+neutrons) of 182, though. None of these isotopes are the most stable for the given element, and thus these are not listed on the periodic table. I think Tungsten has an atomic mass of 183?
What is unique about an isotope?
Isotopes of an element differ from each other by having different numbers of neutrons. For example: 1H (hydrogen), 2H (deuterium), 3H (tritium) are isotopes. They have the same number of protons (1) but different numbers of neutrons (0, 1, and 2 respectively).
