Periods neither have same protons nor neutrons. They have same shells.
There are 11 protons and 12 neutrons. And that does not depend on the periodic table. Sodium had 11 protons and 12 neutrons long before the periodic table, or even human, beings existed!
Neutrons are not given directly on the periodic table. However the number of neutrons can be indirectly calculated. Mass number = Number of protons + number of neutrons
the periodic table
The sum of protons and neutrons is the atomic mass.
55 - No. of protons and neutrons Manganese 25 - No. of protons
Electrons, protons, neutrons
subtract the atomic number (#of protons, it's on ur periodic table) from the atomic mass (it's usually a decimal, also on ur periodic table.) this will give u the number of neutrons. the atomic mass is PROTONS + NEUTRONS
No. For the most part, it is arranged by the number of protons. But even here there are exceptions.
Because it has the atoms in the protons and neutrons
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 number of protons in an atom is its atomic number, which you can find on the periodic table. To calculate the number of neutrons, subtract the atomic number from the atomic mass listed on the periodic table.
The periodic table has 7 periods and 18 groups. The order of elements is governed by the number of protons.