The isotope 155Nd is non stable (radioactive); his half life is 8,9 seconds.
The atomic number equals the number of protons in an atom, as well as the number of electrons in a stable, electrically neutral atom, it represents the identity of an element ,the simplest form of matter.
A neutral nitrogen atom has 7 protons. This is because nitrogen has an atomic number of 7 and each atom has the same number of protons as its atomic number. Therefore a neutral nitrogen atom would have 7 protons.
16 The atomic number of an element is always the same as the number of protons in an atom of the element.
If an atom has a balanced charge, it means that the number of protons equals the number of electrons. So, you would expect to find the same number of protons as the atomic number of the element.
Protons = 18neutrons = 22 (for the most stable isotope of argon, Ar-40)
A stable atom with 90 neutrons could potentially have a maximum of 90 protons, as the number of protons would have to be equal to or less than the number of neutrons for the atom to be stable.
It would by definition be Helium (atom number = number of protons = 2) but the nucleus of the stable isotope 4He also contains 2 neutrons (the mass number = total number of p's and n's = 4)
There are 13 protons in an atom of aluminum, regardless of the isotope. If it didn't have 13 protons, it wouldn't be aluminum, it would be something else. There are 14 neutrons in an atom of aluminum 27, its only stable isotope.See the Related Questions for how to count the number of protons, neutrons and electrons in any atom of any element.
The atomic number equals the number of protons in an atom, as well as the number of electrons in a stable, electrically neutral atom, it represents the identity of an element ,the simplest form of matter.
The atoms having 2 protons only in nucleus is not stable but 2 protons with 2 neutron in Helium nucleus are very stable.
The atomic number equals the number of protons in an atom, as well as the number of electrons in a stable, electrically neutral atom, it represents the identity of an element ,the simplest form of matter.
Having an equal number of anything does not make an atom stable.
The number of electrons in an atom is the same as the number of protons in the nucleus, which is equal to the atomic number of the element. For a neutral atom, the number of electrons also equals the number of protons to balance the positive charge of the nucleus.
A neutral nitrogen atom has 7 protons. This is because nitrogen has an atomic number of 7 and each atom has the same number of protons as its atomic number. Therefore a neutral nitrogen atom would have 7 protons.
16 The atomic number of an element is always the same as the number of protons in an atom of the element.
If an atom has a balanced charge, it means that the number of protons equals the number of electrons. So, you would expect to find the same number of protons as the atomic number of the element.
Protons. A balanced or stable atom has the same number of protons (positive charges) as electrons (negative charges), ensuring overall neutrality. If this balance is disrupted, the atom may become an ion, carrying a positive or negative charge.