Radium
Radium - 228.
The nuclear reaction is: 232Th--------------- 228Ra + α
The number of protons in an atom of an element is equal to the number of electrons in that atom which is equal to that element's atomic number.
Thorium 230 has 90 protons and 140 neutrons - the difference is 50.
When the number of protons in an atom changes, the identity of the element changes because the number of protons determines the element's atomic number. If the number of protons changes, the atom becomes a different element. This process is called nuclear fusion or fission.
Radium - 228.
The nuclear reaction is: 232Th--------------- 228Ra + α
Well what element are you starting out with?
the number of protons in an atom is what determines which element the atom is. So if an atom "lost" a proton, it would become another element entirely.
Thorium's atomic number is 90. Thus, thorium has 90 protons per atom. To be electrically neutral then, thorium must also have 90 electrons per atom.
Thorium is a metal element. There are 90 electrons in a single atom.
Thorium (Th).
An ions is formed when an atom gains or loses electrons.
The number of protons in an atom of an element is equal to the number of electrons in that atom which is equal to that element's atomic number.
protons
Thorium 230 has 90 protons and 140 neutrons - the difference is 50.
An atom with 7 protons is a nitrogen atom. Protons determine the element of an atom, so an element with 7 protons is always nitrogen, which has the atomic number 7.