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This is a bit of an ambiguous question but:
Radon (Rn) is the only radioactive noble gas. Rn222 has a half life of about 4 days, and can also form a few compounds, though Xenon (Xe) also forms compounds with electronegative elements like fluorine.
Helium is the most stable element in the Periodic Table because of it's electron configuration and atomic radius.
There's lots more information about the noble gases out there and each one can do something unique so perhaps specify what you wish to know about the noble gases.
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BlakeAtoms and molecules with odd numbers of electrons are considered paramagnetic because they have unpaired electrons, which means they can be influenced by magnetic fields. This property is important in various applications, such as MRI technology and studying chemical reactions. Examples include oxygen (O2) and nitrogen monoxide (NO).
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What is odd element in the noble gases?
The odd element in the noble gases is helium because it has an atomic number of 2, while the other noble gases (neon, argon, krypton, xenon, and radon) have atomic numbers that are even.
Do you always follow the octet rule when drawing a Lewis structure?
No, the octet rule is a guideline, but there are exceptions for certain molecules and ions where atoms may have more or fewer than eight electrons in their valence shell. These exceptions typically involve elements from period 3 and below and can include expanded octets, odd-electron species, and species with incomplete octets.
When you draw the Lewis structure for Cl how many odd electrons are there in this atom?
Cl has 7 electrons. If you draw Cl^-, there are 8 electrons and a minus 1 charge. What do you want to draw? And what do you mean by "odd" electrons?
What Lewis structure cannot be drawn without violating the octet rule?
A Lewis structure that violates the octet rule would be one where a central atom doesn't have an octet of electrons, but has less or more than eight electrons around it. Examples include molecules with an odd number of valence electrons, such as NO or radicals like NO2.
What are the limitations of octet rule?
The octet rule does not apply to all elements, especially those with more than 8 valence electrons. It also does not explain the bonding in molecules with odd numbers of electrons or in species with expanded octets, such as phosphorus pentachloride. Additionally, the rule is a simplification and does not account for molecular geometry and resonance structures.
