Iron has several isotopes but the most common is Fe56. which is 92 percent of natural Iron, so I will describe that.
This has a nucleus with 26 protons and 30 neutrons. It therefore has 26 electrons and the electron shells contain 2, 8, 14, and 2 electrons (from inner to outer shells).
So color your protons and neutrons differently and stick 26 and 30 of these together for the nucleus, then arrange the electrons as described in orbits around the nucleus.
The scientist that developed the iconic atom model that depicts a nucleus surrounded by electrons was Ernest Rutherford. Rutherford developed the model in 1911 after displaying some experiments that showed that the J.J.Thomson model was incorrect. Rutherford's experiment showed that an atom is a small but heavy central particle and is surrounded by a cloud of electrons. This was the opposite of what Thomson's model proposed.
Erwin Schrodinger proposed the modern atomic model, known as the "wave-mechanical" model. Essentially, he said that atoms behave like both waves and particles, and purported the concept of electron shells, subshells, and orbitals. Electrons are found on "shells" of charge outside the atom. These shells divide into subshells, which divide into orbitals.
In Bohr's model electrons move in a direct determined path around the nucleus. A modern model of the atom have electrons that travel around the nucleus and behave like waves and do not follow a specific path.
the bohr model suggests that electrons follow orbits around the nucleus. Quantum mechanics describes electrons differently and gives them different properties. It tells us where an electron is most likely to be found but no defined path of motion around the nucleus
because a deficiency in a mineral like iron can cause the body to function less efficiently
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You need naked iron, in an environment containing oxygen (like most outside air, or water). Steel is carbon saturated steel. Oxygen can't easily bind with the iron elements in steel, as carbon has a stronger bond, and even if an oxygen atom would pull out another atom out of the steel it would be a carbon atom, not an iron one.
Niels Bohr suggested a planetary model for the atom.
No.
circular
To explain atomic emission spectra. Using the Bohr Model of a hydrogen atom, deriving the frequency of these emission lines is almost trivial. Without the Bohr Model, deriving them is impossible. Also, the "classical" model of electrons in an atom, acting like planets around a nucleus, would result in complete collapse of such an atom in a small fraction of a second.
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To explain atomic emission spectra. Using the Bohr Model of a hydrogen atom, deriving the frequency of these emission lines is almost trivial. Without the Bohr Model, deriving them is impossible. Also, the "classical" model of electrons in an atom, acting like planets around a nucleus, would result in complete collapse of such an atom in a small fraction of a second.
Yes, the mass of an iron atom is different from the mass of a copper atom. The mass of an iron atom is approximately 56 atomic mass units, while the mass of a copper atom is approximately 63.5 atomic mass units. Therefore, there is a difference of about 7.5 atomic mass units between the two.
The Billiard Ball Model is John Dalton's idea of what an atom looks like.
Like planets orbiting the sun. ( :
Bohr