Fluorine is the most reactive and electronegative of all the chemical elements, making it the most reactive and electronegative of all the chemical elements. The only elements with which it does not have a strong reaction are oxygen, helium, neon, and argon, among others. It is one of the few elements that can combine with […]
Fluorine is a halogen gas that belongs to the 17th group of the periodic table. It is also known as fluorine gas. There are nine atoms in one gram of the element. The most distinguishing characteristic of fluorine is that it is the element with the greatest electronegative charge in the periodic table. At standard
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Atomic Structure, Chemistry, Class 11, Dual nature of matter, de Broglie equation, NEETThe elements chlorine, fluorine, iodine, bromine, and astatine (the radioactive element) are together known as halogens. The chemical and physical properties of these elements have been studied very carefully. Halogens show a perfect gradation and belong to group Vll in the periodic table. In addition, halogens can gain an electron by reacting with atoms of
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Atomic Structure, Chemistry, Class 11, Dual nature of matter, de Broglie equation, NEETA group of elements known as the halogens includes the elements fluorine, chlorine, bromine, iodine, astatine, and the more recently found radioactive element cesium-137. All of these elements’ physical and chemical properties, with the exception of astatine, have been thoroughly investigated. They are members of group VII of the periodic table, and their physical qualities
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Atomic Structure, Chemistry, Class 11, Dual nature of matter, de Broglie equation, NEETThe bulk of transition metals have a paramagnetic property. Unpaired electrons in (n-1) d orbitals are responsible for the magnetic properties. The paramagnetic property of transition metals rises from left to right as the number of unpaired electrons increases from one to five. Diamagnetic materials lack elementary magnetic dipoles. In other words, diamagnetism occurs when
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Atomic Structure, Chemistry, Class 11, Dual nature of matter, de Broglie equation, NEETNiels Bohr proposed an atomic model in 1913, describing an atom as a small, positively charged nucleus surrounded by electrons that travel in circular orbits around the positively charged nucleus, similar to the orbits of the planets around the sun in our solar system, with attraction provided by electrostatic forces. The model was accepted in
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Atomic Structure, Bohr’s atomic model, quantum numbers, Chemistry, Class 11, NEETNitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth are all members of the nitrogen family of chemicals (Bi). The electron configuration ns2np3 is found in the outer shells of all Group 15 elements, where n is the primary quantum number. Group 15’s p-block contains the nitrogen family. Group 15 Elements Can Be Found
When n = 3 or more, azimuthal quantum number = 2. The d-orbital has azimuthal quantum number l=2. The magnetic quantum number ml for the d-orbital might be -2, -1, 0, 1, or 2. These are dxy, dyz, dxz, dx2-y2, and dz2. The orbitals are a linear mixture of the distinct ml values. Except for
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Atomic Structure, Bohr’s atomic model, quantum numbers, Chemistry, Class 11, NEETThe inner transition element occupies a position in between the elements lanthanum (Z=57) and hafnium (Z=72), and also between actinium (Z=89) and rutherfordium (Z=104). Elements from 58-71, follow lanthanide series are known as the lanthanides, and elements from 90-103, follow the actinium series, are known as the actinides. There is mainly some doubts as to
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Atomic Structure, Bohr’s atomic model, quantum numbers, Chemistry, Class 11, NEETWith the chemical symbol Si and the atomic number 14, silicon is one of the elements in the periodic table. It is a tetravalent metalloid and semiconductor that is a hard, brittle crystalline solid with a blue-grey metallic lustre and a blue-grey metallic lustre. It is classified as a member of group 14 in the
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Atomic Structure, Bohr’s atomic model, quantum numbers, Chemistry, Class 11, NEET