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Which element is a liquid at room temperature?
There are two elements which are liquid at room temperature and they are Mercury (Hg) and Bromine (Br). Copernicium (Cn) might be liquid at room temperature but chemists are not sure about it.
Is bromine the element brittle?
No, Bromine is not brittle at room temperature, as Bromine is one of only two elements in the Periodic Table that is a liquid at room temperature.
What do O2 H2 CO2 N2 have in common?
These are the essential elements for the building blocks of life (DNA).
What are characteristics of halogens?
they exist in all 3 states of matter at room temp. they all tend to form salts halogens are diatomic, meaning that they exist as molecules with two atoms thats all I got They're colored. Their names typically end in "-ine." They're nonmetals.
Why does no reaction take place between methane and chlorine at room temperature?
For a reaction between oxygen molecule and hydrogen molecule to take place the bond between the two oxygen atom in O2 and the two hydrogen atom in H2 is required to be breaked. For this process a high temperature is needed which is not possible at room temperature. Since no bond breaks to make an reacting atom, the reaction does not takes place at room temperature
What are two types of gases?
halogens and noble
What is the total number of elements in Group 17 that are gases at room temperature at standard pressure?
There are two that are gases, fluorine and chlorine.
Which nongaseous compound can be made from two elements that are gases at room temperature?
Carbon dioxide
List two substances that are solids two that are liquid and two that are gases at room temperature?
aluminum and rock juice and milk oxygen and nitrogen
What are two chemical families on the periodic table?
alkali metals, halogens, noble gases
How is water derived from two gases?
When two or more elements are combined to make a compound, water, the new compound can have completely new properties(water is a liquid at room temperature ,while hydrogen and oxygen (elements in the water) are both gases at room temperature),or they can have similar properties to their elements
Is sulfur oxide a gas?
Sulfur forms two oxides SO2 and SO3 both these are gases at room temperature.
What are the 2 halogens with the highest melting points?
Melting points increase with atomic weight for elemental halogens (the second-most right column in a periodic table). The heavier the atom, the harder to turn it into a liquid. The lightest halogens, such as Florine (F) and Chlorine (Cl) are gasses at room temperature, having "melted" and "boiled" at lower (colder) temperatures. The two heaviest halogens are Iodine (I) and Astatine (At). Astatine is very rare, but Iodine is common and is a solid at room temperature. The have the highest melting points of halogens. Remember, F down to At increase in melting points. F and Cl are gases, so they have low melting point. Br is a liquid, so it has a higher melting point. I and At are solids so it takes more heat to melt them.
What periodic table group has similar chemical properties but different physical properties?
Group 17, the halogens have similar chemical properties. However, at standart temperature and pressure, two are gases, one is a liquid and two are solids.
What is the relationship between halogen and a noble gas?
atomic number fall into groups and periods....groups two of which are halogens and noble gases... means halogens and noble gases are related to each other by groups... hope i helped...
What are two symbols for halogens?
We find five halogens in periodic table. Those are non metal elements. Fluorine and chlorine gases are examples.
What are the two main differences in 1A and 7A elements?
The classification with 1A, 7A etc. is not recommended by IUPAC and is obsolete.The 1A elements are alkali metals, all solids; the 7A elements are the nonmetals (halogens). Halogens can be gaseous, liquids or solids at room temperature.
