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Henry Moseley
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What is the atomic number for ammonium sulfate?
ammonium sulfate is a compound not an element and therefore has no atomic number. Perhaps you were thinking of molecular weight. But that is a totally different concept.
Why did Mendeleev not consider the number of subatomic particles as a way to organize the elements?
The concept of atomic number had not yet been developed at the time of the first periodic tables, when atoms were still considered "indivisible units" and the concepts of protons, electrons, and neutrons were not yet known.
What is the number of protons in the neucleus called?
the answer is that it is called a atomic number.
What are the mad made elements?
Technetium, atomic number 43 Promethium, atomic number 61 Astatine, atomic number 85 Francium, atomic number 87 Neptunium, atomic number 93 Plutonium, atomic number 94 Transuranium elements Americium symbol Am, atomic number 95 Curium symbol Cm, atomic number 96 Berkelium symbol Bk, atomic number 97 Californium symbol Cf, atomic number 98 Einsteinium symbol Es, atomic number 99 Fermium symbol Fm, atomic number 100 Mendelevium symbol Md, atomic number 101 Nobelium symbol No, atomic number 102 Lawrencium symbol Lr, atomic number 103 Transactinide elements Rutherfordium symbol Rf, atomic number 104 Dubnium symbol Db, atomic number 105 Seaborgium symbol Sg, atomic number 106 Bohrium symbol Bh, atomic number 107 Hassium symbol Hs, atomic number 108 Meitnerium symbol Mt, atomic number 109 Darmstadtium symbol Ds, atomic number 110 Roentgenium symbol Rg, atomic number 111
The atomic number gives the number of what in an atomic nucleus?
Atomic Number It is thre position of the atom in the periodic table. It is the number of protons in the neucleud. It is the number of electrons in the neutally charged atoms. Atomic MASS it the total of the protons and neutrons in the atom.
What is the developed concept of atomic number?
The atomic number is the number of protons in the nuclei of the atoms of an element. The atomic number is unique to each individual element.
Are elements organized by atomic number or atomic mass?
On very early versions of the Periodic Table the elements were organized by atomic mass, because it was measurable and the concept of atomic number was unknown. After Rutherford and Bohr developed their model of the structure of the atom, the Periodic Table was reorganized by atomic number (which caused a few elements to swap positions).
Who is credited with developing the concept of atomic numbers?
On observing the X-Ray spectrum with increasing atomic numbers Henry Gwyn-Jefferies Moseley developed the concept of atomic numbers. By testing Bohr's and Broek's hypothesis he was able to arrive at the conclusion.
What culture developed a place value for the number 0?
The concept was developed by Aryabhatta, in the Gupta empire in India.
How is the concept of authority developed?
concept of authority developed
What is the atomic number for ammonium sulfate?
ammonium sulfate is a compound not an element and therefore has no atomic number. Perhaps you were thinking of molecular weight. But that is a totally different concept.
What was the contribution of H. Moseley in the development of atomic theory?
He determined the number of positive charges in the nucleus of an atom. He was the first one to bring the concept of atomic number.
Who discovered the concept of the atomic number?
Henry Gwyn-Jeffreys Moseley in the 1910s.
How atomic excitation lead to concept of laser?
How atomic excitation lead to concept of laser?
Who first developed the concept of acceleration?
Galileo developed the concept of acceleration.
Which periodic table number determines which element an atom is?
An atom's atomic number tells which element it is. The atomic number of an element is equal to its number of protons. The number of neutrons may vary within an element, giving rise to the concept of isotopes.
Was there a book written about the atomic bomb before they were developed?
Yes, there were books written about the concept of atomic energy and the potential for atomic bombs before they were actually developed. One notable example is H.G. Wells' 1914 novel "The World Set Free," which featured a speculative portrayal of atomic bombs and their impact on society.
