45
All the oxygen isotopes, natural or artificial, has 8 protons, because th atomic number of oxygen is 8.
Thorium, or Th, has an atomic number of 90. That means that every atom of thorium has 90 protons. The only naturally abundant isotope of thorium is 232Th, and so therefore it has 232 - 90 = 142 neutrons.
Unfortunately WikiAnswers doesn't accept subscript/superscript.For the isotope thorium-232: 232Th90232 is a superscript (mass number) and 90 is a subscript (atomic number).
Atom X and Atom Y are isotopes of the same element, as they have the same number of protons but a different number of neutrons. This difference in neutrons results in different atomic masses for each atom while they both belong to the same element.
Potassium have th atomic number of 19 this means it has 19 protons in its "core" and in atoms the number of electrons are always equal to the number of protons hence also 19. the number of neutrons however vary dependent on witch potassium isotope it is the average for potassium is however 20 in potassium 39
The element with 45 protons is Rhodium which has the chemical symbol Rh. Rhodium is a transition metal in Group 9, Period 5 of the Periodic Table. Rhodium has 45 electrons in 5 shells with 1 electron in the outer shell.
The atomic number of thorium is 90. So there are 90 protons and 90 electrons. In Th-230 isotope there are 140 neutrons (230 - 90 = 140) So there are 50 more neutrons than the number of protons.
For example a thorium isotope is Th-231 or 23190 Th.
they are the same element because an element has an atomic number through its number of protons so if there was an element with 2 protons it would be number 2 in the periodic table which is helium, if another element has 2 protons it should be helium still, if it wasn't modified in anyway
All the oxygen isotopes, natural or artificial, has 8 protons, because th atomic number of oxygen is 8.
An example of beta decay for a thorium isotope: Th-231(beta)Pa-231.
Thorium, or Th, has an atomic number of 90. That means that every atom of thorium has 90 protons. The only naturally abundant isotope of thorium is 232Th, and so therefore it has 232 - 90 = 142 neutrons.
Unfortunately WikiAnswers doesn't accept subscript/superscript.For the isotope thorium-232: 232Th90232 is a superscript (mass number) and 90 is a subscript (atomic number).
The top left number is the mass (neutrons&protons) and the bottom left number is the atomic number(protons)
Atom X and Atom Y are isotopes of the same element, as they have the same number of protons but a different number of neutrons. This difference in neutrons results in different atomic masses for each atom while they both belong to the same element.
ATOMIC NUMBER
When U-238 emits an alpha particle, it loses two protons. This results in the atom transforming into a different element (Th-234) which has two fewer protons in the nucleus.