The number of protons in the nucleus is equal to the atomic number of that atom. Said another way, the atomic number of any element is the number of protons in the nucleus of any atom of that element.
It might be helpful to consider some examples, and if we look at Mercury, we'll see it has an atomic number of 80. All atoms of mercury have 80 protons in them. Aluminum has the atomic number of 13, so all atoms of it have 13 protons in them. Uranium, which has atomic number 92, has 92 protons in all of its atoms.
The number of electrons and neutrons in a given atom of a given element can vary for a number of reasons, and these characteristics are considered separately. The number of electrons in any atom will match the number of protons in the nucleus of that atom only if the atom is a neutral one. Some atoms loan out or borrow electrons, and then they become what are called ions. The number of neutrons can vary, too, and we use the term isotope to talk about atoms of a given element having different neutron counts.
The atomic number indicates the number of protons in an atom's nucleus.
The number of protons in the nucleus is the atomic number of the atom.
You can find the number of protons by looking at the Periodic Table. The atomic number on the Periodic Table on that specific element tells how many protons and electrons are there.
For example, Beryllium has the number 4. That means there are 4 protons and 4 electrons.
The number of protons in an atom's nucleus determines its chemical identity.
The atomic number of silver is 47, which means it has 47 protons in its nucleus.
The number of protons in the nucleus of an atom.
The number of protons in a nucleus is called the proton number, or atomic number. It is what defines which element we have.
The atomic number is equal to the number of protons in the nucleus of an atom.
The number of protons in an atom's nucleus is the Atomic number.
The number of protons in an atom's nucleus determines its chemical identity.
The number of protons in a nucleus depends on which element it is. ( The number of protons is the decider as to which element it is. ) The number of electrons in an atom is the same as the number of protons in the nucleus, but none of the electrons are in the nucleus. Rather, they orbit around the nucleus like planets round a star.
The number of protons in the atomic nucleus is equal to atomic number.
The atomic number is equal to the number of protons in an atom's nucleus.
The atomic number of silver is 47, which means it has 47 protons in its nucleus.
The number of protons in the nucleus of an atom.
The number of protons in the nucleus is the same as the atomic number.
The number of protons in an elements nucleus is the same number at the atomic number.
A nucleus contain protons and neutrons. A nucleus can hold more protons - the number is equal to atomic number.
atomic number is the number of protons
The number of protons.