General Knowledge - General Science - Discussion
Discussion Forum : General Science - Elements and Metals (Q.No. 2)
2.
Which of the following is a non metal that remains liquid at room temperature?
Discussion:
103 comments Page 2 of 11.
Kimberly said:
1 decade ago
Bromine is a chemical element with the symbol Br, and atomic number of 35. It is in the halogen group. The element was isolated independently by two chemists, Carl Jacob Lowig and Antoine Jerome Balard.
Sakshi Vaid said:
1 decade ago
It is one of only two elements on the periodic table that are known to be liquids at room temperature (mercury is the other, although caesium, gallium, and rubidium melt just above room temperature).
Nagesh said:
1 decade ago
To exist a molecule together (group of atoms) there is some forces are working that force may be strong electrostatic force or force due to electron transformation or week van der waal forces.
Revathi krishna said:
1 decade ago
With an increase in the atomic number the vander waals forces of attractions between the molecules increase so the physical state changes. Therefore, Bromine is liquid at room temparature.
Jigme sherab said:
8 years ago
Bromine is a liquid because the intermolecular forces are strong enough so that it does not vapourise. Br forms diatomic molecules and van der Waals interactions are sufficiently strong.
Bannappa (CVR) said:
1 decade ago
It is one of only 2 elements in periodic table that are liquids at room temperature (mercury is the other, although caesium, gallium, and rubidium melt just above room temperature).
Usuario said:
8 years ago
Yes it's bromine. The reason why is mercury is used in the barometer is b because it has a high coefficient of expansion. So a slite rise in pressure or temperature can be known.
Tin said:
1 decade ago
Bromine is the only liquid non metal at room temperature while in case of metals it is mercury and of couse you all are also right. Manzoor explained it right and also revathi.
Kuenzang said:
1 decade ago
Bromine is non metal in liquid state @room temperature. And mercury is metal in liquid state @room temperature of bromine vander waal's increase as atomic number increases.
Saim said:
11 months ago
How does the tilt of the earth's axis contribute to the uneven distribution of sun light and the formation of seasons in the northern and southern hemispheres?
(2)
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers