All you need is the Periodic Table and a brain.
The number of protons is the atomic number(located at the top left hand side of the square for each element)
The number of nutrons is the the Atomic Mass minus the Atomic Number.
The bigger number (Atomic mass) is the amount of protons (=same amount of electrons unless specified) and nutrons in an atom. The smaller number (atomic number) is the amount of protons only
There are 88 protons/electrons in radium. There are 138 neutrons.
Protons and Neutrons compose the nucleus of an atom. Protons and nutrons weight combine to give the mass of the atom. In most atoms, the amount of Neutrons is equivalent to the amount of Protons.
The atomic number of the element is the number of protons, therefore there has to be the same amount of electrons to protons.
the atomic number
18 protons 18 electrons and the amount of neutrons depends on the isotope
There are 2 electrons 2 protons and the amount of neutrons depends on the isotope
In an atom, there are the same amount of protons as electrons, if that's what you mean.
Yes, they are equal. Every atom will have an equal amount of protons and electrons.
Neutral
depends on the atom, Isotopes are mutations of Atoms, with a different mass number. they still have the same amount of protons and electrons as the proper atom.
The number of protons determine the atomic number of an element. There are the same amount of protons as electrons in a regular element.