All group 18 elements (the noble gases) exist as monatormic gases at room temperature and standard pressure. All other elements form diatomic gases, if they exist as gas under the specified conditions.
Among the listed elements there is only one noble gas:
Argon
The majority of chemical elements are solid or liquid at room temperature; for example gases are only hydrogen, nitrogen, oxygen, fluorine, chlorine, noble gases.
Nitrogen
Nitrogen
A molecule made of two identical atoms is called diatomic.Five diatomic elements exist as gases at room temperature (25oC/298K) and atmospheric pressure:Hydrogen, H2Nitrogen, N2Oxygen, O2Fluorine, F2Chlorine, Cl2One diatomic element is a liquid at room temperature and atmospheric pressure:Bromine, Br2One diatomic element is a solid at room temperature and atmospheric pressure:Iodine, I2
Lithium is a solid metal at standard temperature and pressure.
This element, lead (Pb), is a solid at room temperature.
Temperature or pressure.
Nitrogen
Mercury or HG is an element that is liquid at room temperature and is not a diatomic element.
Under most readily achieved temperature and pressure conditions, bromine gas exists as diatomic molecules. Bromine is always an element.
Bromine (Br2) is a brown liquid poisonous diatomic molecule at room temperature.
At room temperature N (N2) is a gas. N, by itself, does not exist at room temperature and standard pressure. It exists as the diatomic gas, N2.
Atmospheric pressure is the weight of the air or the pressure exerted onto the Earth by the air. Pressure changes can lead to different weather patterns.
A molecule made of two identical atoms is called diatomic.Five diatomic elements exist as gases at room temperature (25oC/298K) and atmospheric pressure:Hydrogen, H2Nitrogen, N2Oxygen, O2Fluorine, F2Chlorine, Cl2One diatomic element is a liquid at room temperature and atmospheric pressure:Bromine, Br2One diatomic element is a solid at room temperature and atmospheric pressure:Iodine, I2
yes it is.
The element boron is a solid at standard temperature and pressure.
No - it is a gas element
The boiling temperature of an element can change by changing the pressure.
Lithium is a solid metal at standard temperature and pressure.