A periodic table of the elements.
The atomic number of an element is how many protons is in it. So the chart is arranged lowest atomic number to highest.
The chart is organized so heavier elements are towards the bottom right.
The number of protons in an atom's nucleus determines its chemical identity.
The periodic chart can tell us several things. The number of protons of an element, the number of electrons in an uncharged element and, by calculation, the number of neutrons. The number of electrons an atom has can be variable. We can have either positively charged atoms (the electrons and protons are not equal and do not cancel, in this case there is one less electron) or negatively charged (one more electron than proton.) The number of protons, though, is not variable. This is what defines what element we have. Calcium has 20 protons. Always. That's how we know that it's calcium. The number of neutrons is also variable and can be calculated as the atomic mass minus the mass of the protons (the electrons contribute significantly less to the total mass and are typically disregarded.)
Ytterbium #70 on the periodic chart
Krypton # of protons: 36 # of electrons: 36 # of neutrons: 83.798(2)
Periodic Table
The type of element of a particular atom is based solely on its number of protons. An atom with 9 protons has an atomic number of 9, and is (looking on the elemental chart...) fluorine (F).
Use the atomic number. according to the number of protons.
A periodic table of the elements.
Experimentally, I'm not sure, but I know you can look at your periodic chart, the large number over the symbol of each element is teh number of protons in that element.
The atomic number of an element is how many protons is in it. So the chart is arranged lowest atomic number to highest.
Bromine has 35 protons and 35 electrons (if it is neutral). Rubidium has 37 protons and 37 electrons (if it is neutral as well). The atomic number is equivalent to the number of protons in an atom. You can easily solve this problem by looking at your periodic table, finding Bromine (Br) and then moving 2 atoms along the chart. There you will find Rubidium.
that would depend on what element your talking about. ie Hydrogen is #1 on the periodic chart, and it has 1 electron and 1 proton. Aluminum is 17? on the periodic chart, and it has 17 electrons and protons. just look at the atomic number, and that's how many it has
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.
This describes the element carbon with the symbol "C", or more particularly the isotope carbon-12, which can be symbolized as "12C".