WebDescribe the properties, preparation, and uses of the noble gases The elements in group 18 are the noble gases (helium, neon, argon, krypton, xenon, and radon). They earned the … WebChlorine is added to the domestic water supply in order to A soften the water B kill any germs C improve the taste ANSWER: B. B . kill any germs. 13. Which of the following is a noble gas? A argon B carbon dioxide C hydrogen D oxygen ANSWER: A. A . argon. 15.
Which Elements in the Periodic Table Are Gases at Room …
The noble gases are colorless, odorless, tasteless, and nonflammable under standard conditions. They were once labeled group 0 in the periodic table because it was believed they had a valence of zero, meaning their atoms cannot combine with those of other elements to form compounds. However, it was later discovered some do indeed form compounds, causing this label to fall into dis… WebMay 9, 2024 · The elements that are gases at room temperature are radon (Rn), xenon (Xe), krypton (Kr), argon (Ar), chlorine (Cl), neon (Ne), fluorine (F), oxygen (O), nitrogen (N), helium (He) and hydrogen (H). hormone secreted by the kidney
Chlorine - Element information, properties and uses
WebChlorine is a chemical element commonly used in industry and found in some household products. When chlorine gas comes into contact with moist tissues such as the eyes, throat, and lungs, an acid is produced that can damage these tissues. At room temperature, chlorine is a yellow-green gas under normal conditions and can be dissolved in water. WebThe only chemical elements that form stable homonuclear diatomic molecules at standard temperature and pressure (STP) (or typical laboratory conditions of 1 bar and 25 °C) are the gases hydrogen (H 2), nitrogen (N 2), oxygen (O 2), fluorine (F 2), and chlorine (Cl 2).. The noble gases (helium, neon, argon, krypton, xenon, and radon) are also gases at STP, but … WebAs the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine. Chlorine. Chlorine is a yellow-green gas at room temperature. It is an extremely reactive element and a strong oxidising agent: among the elements, it has the highest electron affinity and the third ... lost baggage montreal airport