0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What is the effective atomic number of human tissue?
7.64
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.
How atomic excitation lead to concept of laser?
How atomic excitation lead to concept of laser?
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.
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).
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.
Who developed the concept of atomic number?
Henry Moseley
What is the effective atomic number of water?
7.4
What is the effective atomic number of human tissue?
7.64
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?
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.
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).
How do you calculate the effective atomic number for different metallocenes?
calculate EAN OF[CO (NH3)]+3
What is the square root of the atomic number of helium?
Weird concept, but: Atomic number of helium is 2, so its square root is √2. √2 is an irrational number so only an approximate decimal expansion can be made: √2 ≈ 1.4142
