WebYellow-green: Gas: Yellow-green: Bromine, Br 2: Deep-red: Liquid: Red-brown: Iodine, I 2: ... Predict the melting and boiling points of astatine, and its state at room temperature. Reveal answer Chlorine is a chemical element with the symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between them. 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 af…

Chlorine - Physical and chemical properties Britannica

WebRoom temperature is usually taken as being 25°C. At this temperature, fluorine and chlorine are gases, ... Fluorine is very pale yellow, chlorine is yellow-green, ... WebWhich of the following interhalogen is a pale brown gas at room temperature? MHT CET. MCQ Online Mock Tests 50. Important Solutions 4. Question Bank Solutions 7657. … aws 通信量 課金

Standard temperature and pressure - Wikipedia

WebIt has an atomic number of 17 and is a green gas at room temperature. Its name comes from the Greek word chloros, meaning 'green'. Chlorine has a pretty high electronegativity, … WebIt has an atomic number of 17 and is a green gas at room temperature. Its name comes from the Greek word chloros, meaning 'green'. Chlorine has a pretty high electronegativity, ... For example, the halogens get progressively darker as you move down the group - fluorine is a pale gas while iodine is a grey solid. WebEach halogen has the following characteristics at room temperature: Fluorine is a pale yellow gas. Chlorine is a poisonous green gas. Bromine is a toxic red-brown liquid. Iodine is a dark grey solid which gives off a purple vapour when heated. Astatine is a black solid. Unlike the group 1 metals, reactivity decreases as you go down the halogens. aws技術者認定