during the x-rays analysis nuclear charge was discovered which is due to numbers of protons ...Mosley proposed the word ;atomic number; for numbers of protons in an atom. it decides the nature of an atom or element..
the atomic number is arranged by atomic weights and it is important so you know what element is heavier hope i helped:)
this elemnt has an atomic number that is double the atomic number of silicon?
Atomic number 27 : Cobalt Atomic number 28 : Nickel Atomic number 29 : Copper Atomic number 30 : Zinc Atomic number 31 : Gallium
You subtract the atomic number from the mass number.
The atomic number is equal to the protons and electrons of an element.
Number of neutrons = Mass number - atomic number
There are no symbols for atomic mass and number. They're just written as numbers.
Oxygen is a non metal element. Atomic number of it is 8.
Very.
Fe, iron, has an atomic number of 26 and an atomic mass of 55.85
The atomic number is the number of protons in the atom. The number of protons is what determines the element the atom is. This makes the atomic number very important in determining what the atom is.
The proton.
The elements are arranged according to the atomic number. The number of protons is equal to the atomic number.
Do not come to WikiAnswers to have your homework done for you. The number of protons and electrons can be found by the atomic number and the number of neutrons is a function of the atomic weight minus the atomic number.
The most important is the proton; the number of protons is equal to the atomic number.
The atomic number is the number of protons found in one atom of the given element. It is very important for many reasons. Firstly, the element itself depends on the number of protons (If you changed the number protons, then the element would change as well). Secondly, you can discover the amount of electrons using the atomic number (there are the same number of electrons in an element as the number protons, or the atomic number).
the answer is that it is called a atomic number.
the answer is 21. because you do 40-19