Chlorine . The name comes the Classical Greek for Green , Chloros.
We also have the word ' chlorphyll' for a green organic chemical .
Fluorine is a pale yellow gas and very reactive. Chlorine is a pale green - which could look yellow depending on the lighting. it too is highly reactive. Of the two, you would probably be looking for fluorine as the best answer.
No halogen gas has a mass of under 15 atomic mass units. The closest is fluorine, at 19.0 atomic mass units.
it is a yellow green gas
Flatulent gas
Chlorine
Fluorine is a pale yellow gas and very reactive. Chlorine is a pale green - which could look yellow depending on the lighting. it too is highly reactive. Of the two, you would probably be looking for fluorine as the best answer.
The element symbol Cl stands for chlorine. It is classified as a halogen gas and is poisonous to humans. At room temperature, it looks like a yellw-green gas.
It is an element. It is a VERY poisonous gas. It is the most reactive of the halogen elements . Sometimes nicknamed the 'Tyrranosaurus Rex' of the elements. It is green/yellow in colour. It has the least atomic mass of the Halogen elements. It is used to make 'non-stick' pans, CFC's , and is often used in fire-retardants, or for fire-fighting.
Chlorine is a yellow green gas at room tempurature.
Green gas is a halogen, which you will find in the periodic table. It is in group seven. It is the Chlorine
The halogen gas that is that most reactive of all elements is Fluorine
hydrogen If the person posting the question is looking for a gas that is an element perhaps the answer they are looking for is Chlorine [Not that Hydrogen is not an element but I do not recall it having colour]
Iodine, element number 53 is the halogen (Group 17) element in period 5.
The element with a mass number of 19 could be fluorine, which is a halogen and a gas, but not a noble gas.
The element chlorine exists at standard temperature and pressure as a green gas.
No halogen gas has a mass of under 15 atomic mass units. The closest is fluorine, at 19.0 atomic mass units.
Chlorine is the most reactive gas element. Chlorine is in the halogen family.