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 crucial because it determines the element's identity. It is the number of protons in an atom's nucleus, which uniquely identifies the element on the periodic table. The atomic number also dictates the element's chemical properties and its position in the periodic table.
The number of protons in the nucleus is called the atomic number.
the answer is 21. because you do 40-19