Which of the noble gases has only radioactive isotopes? What is the atomic number for argon? Write the ground-state electron configuration of element W using the Noble gas shorthand. Why is hydrogen not a noble gas? What do the electron configurations for all the group 18 noble gases have ...
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Sun-stuff, new, lazy, hidden, strange, gas-from-radium; helium, neon, argon, krypton, xenon, radon. These noble (meaning unreactive) gases are not on the whole particularly rare substances. Helium, in fact, is the second most common element in the Universe, after hydrogen, while the ...
What is the only noble gas that does not have the ns2np6 valence electron configuration?Which of the following outer electron configurations could belong to a noble gas? (a) ns^2np^5 (b) ns^2 (c) ns^2np^6 (d) ns^2np^2.Which element has the following electron conf...
Atoms are the fundamental unit of an element. They consist of a nucleus and surroundingelectrons. When an atom has an incomplete electron shell, it is said to have valence electrons. When two or more atoms come together to share outer shell valence electrons, a chemical (covalent) bond is ...
First Element of the Periodic Table: The periodic table is a table in which the chemical elements are arranged by atomic number. It starts with the element with the lowest atomic number all the way to the element with the highest atomic number, Oganesson. ...
Who prepared the first noble gas compound? View Solution What is the formula of the first noble gas compound prepared by N.Bartlett? View Solution Exams IIT JEE NEET UP Board Bihar Board CBSE Free Textbook Solutions KC Sinha Solutions for Maths ...
In contrast, a purely social interpretation of nobility might lack this element of personal modesty, focusing instead on lineage or title. 6 Both humility and nobility, in their moral sense, are idealized qualities that contribute to the social fabric. Humility fosters community and cooperation by ...
A chemical element or compound in such a state. The atmosphere is made up of a number of different gases. Fume Solid material deposited by condensation of fumes; as, lead fume (a grayish powder chiefly lead sulphate). Gas (countable) A hob on a gas cooker. She turned the gas on, put...
Noble gas elementsare mostly inert, so they tend not to form compounds. So, the easiest way to find the answer to which noble gas is the heaviest or most dense is to find the element in the group with the highest atomic weight. If youlook at the noble gas element group, the last el...