Borek said:
Borek said:
Mark44 said:
Pranav-Arora said:
, but if so, we will need units to be able to calculate anything.Borek said:
Pranav-Arora said:
At least in the book I follow, the author has never mentioned the units of vapour density even though it is defined as Molecular weight/2.
avistein said:
Valency is the measure of an element's ability to combine with other elements to form compounds. It is determined by the number of electrons in the outermost energy level of an atom.
To calculate the valency of an element, you need to determine the number of valence electrons it has. This can be found by looking at the element's group number on the periodic table. The valency is then equal to the number of valence electrons.
Valency is important because it helps predict how elements will react with each other to form compounds. Elements with similar valency tend to have similar chemical properties and can form similar types of compounds.
Yes, an element can have more than one valency. This is known as variable valency and is often seen in transition metals. The valency of these elements can vary depending on the compound they are in.
The valency of an element determines how many bonds it can form with other elements. For example, an element with a valency of 1 can form one bond, while an element with a valency of 2 can form two bonds. This helps determine the type of chemical bond that will form between elements.