Beryllium-9 has 9 nucleons.
The number of protons in an atom gives the chemical identity of that atom. It's that atom's atomic number. In the case of lithium, it's atomic number is 3, so it has 3 protons in its nucleus. The element chlorine has the atomic number 17, so there are 17 protons in its nucleus. But we need to look further when we count nucleons in any atom. The element lithium, with its 3 protons, comes in several different "forms" called isotopes. Each isotope has 3 protons, of course, but there are different numbers of neutrons in each isotope. Recall that a nucleon is either of the two "building blocks" of an atomic nucleus, either a proton or a neutron. The metal lithium has two naturally occurring forms, and they are lithium-6 and lithium-7. The isotope lithium-6 has 3 neutrons along with its 3 protons, and that sums to 6 nucleons. In the same manner, lithium-7 has 4 neutrons with its 3 protons, and that adds up to 7 nucleons. We've discovered the number of nucleons in each of the naturally found isotopes of this alkali metal from Group 1 of the periodic table. Note that the number of the isotope is the number of nucleons in the nucleus of the atom under investigation. With that in mind, let's look at chlorine. For chlorine, we find three naturally occurring isotopes. They are chlorine-35, chlorine-36, and chlorine-37. They have 35, 36 and 37 nucleons, respectively, as you'd expect from the isotopic numbers cited for this halogen from Group 17 on the periodic table.
Protons and neutrons are nucleons.
the nucleons contain neutrons and protons in it
The "11" refers, precisely, to the number of nucleons.
There are A + Z nucleons in an element
Beryllium-9 has 9 nucleons.
238 nucleons in 238U.
The "11" refers, precisely, to the number of nucleons.
The number of protons in an atom gives the chemical identity of that atom. It's that atom's atomic number. In the case of lithium, it's atomic number is 3, so it has 3 protons in its nucleus. The element chlorine has the atomic number 17, so there are 17 protons in its nucleus. But we need to look further when we count nucleons in any atom. The element lithium, with its 3 protons, comes in several different "forms" called isotopes. Each isotope has 3 protons, of course, but there are different numbers of neutrons in each isotope. Recall that a nucleon is either of the two "building blocks" of an atomic nucleus, either a proton or a neutron. The metal lithium has two naturally occurring forms, and they are lithium-6 and lithium-7. The isotope lithium-6 has 3 neutrons along with its 3 protons, and that sums to 6 nucleons. In the same manner, lithium-7 has 4 neutrons with its 3 protons, and that adds up to 7 nucleons. We've discovered the number of nucleons in each of the naturally found isotopes of this alkali metal from Group 1 of the periodic table. Note that the number of the isotope is the number of nucleons in the nucleus of the atom under investigation. With that in mind, let's look at chlorine. For chlorine, we find three naturally occurring isotopes. They are chlorine-35, chlorine-36, and chlorine-37. They have 35, 36 and 37 nucleons, respectively, as you'd expect from the isotopic numbers cited for this halogen from Group 17 on the periodic table.
Protons and neutrons are nucleons.
the nucleons contain neutrons and protons in it
Lithium has 4 neutrons.
The "11" refers, precisely, to the number of nucleons.
The average amount of neutrons in phosphorus is 16 but may vary with different isotopes
total number of protons and neutrons in the nucleus.
There are 14, six protons and 8 neutrons.