The atomic number. On the symbol, it's the number at the lower left (the markup here won't allow me to show you exactly what I mean, but it's the 6 in 136C... those two numbers should be directly in line).
It indicates the protons. Periodic table is based on atomic number.
Atomic number
The mass number of an isotope indicates the total number (the sum) of protons and netrons in an atom.The number of protons is determined by the atomic number.The number of neutrons can be found by subtracting the atomic number from the mass number.
The number on the periodic table that indicates the number of protons and neutrons in the nucleus of an atom is the atomic mass number, which is typically located on the top of the element's symbol. It is the sum of the number of protons and neutrons in the nucleus of an atom.
The atomic number indicates the number of protons (19) and electrons (19).
It indicates the atomic number
the number of protons
It indicates the atomic number of that element.
It indicates the protons. Periodic table is based on atomic number.
Atomic number
The atomic number indicates the number of protons or number of electrons in the case of a neutral atom.
The atomic number is the number of protons in the atom. In the case of a neutral atom (as opposed to an ion), the atomic number is also equal to the total number of electrons.
The atomic number indicates the number of protons in an atom of a particular element. The atomic number must be an integer (counting number), and is unique to that specific element.
The mass number of an isotope indicates the total number (the sum) of protons and netrons in an atom.The number of protons is determined by the atomic number.The number of neutrons can be found by subtracting the atomic number from the mass number.
Atomic Number
atoms
ATOMIC NUMBER