Explanation:
The representative elements are in columns A1 - A7. In an 18 column table the map is as follows:
A1 = column 1, hydrogen + alkali metals have 1 valence
A2 = column 2, alkaline earth metals have 2 valence
A3 = column 13, Boron family have 3 valence
A4 = column 14, Carbon group have 4 valence
A5 = column 15, Nitrogen family have 5 valence
A6 = column 16, Oxygen column - chalcogens have 6 valence
A7 = column 17, Fluorine column - halogens have 7 valence
<u>The group number of the representative elements = the number of valence electrons.</u>
It would be false adding a solute to a solvent
In order to float the demsoty of the floating obkect must be lower then the liquid it is in. the only one that works for is Citric acid
Answer:
pH = 7.01
Explanation:
The pH can be calculated using the formula:
pH = -log[H⁺]
In this formula, [H⁺] represents the concentration of H⁺. Since you have been given this value, you can easily find the pH.
pH = -log[H⁺]
pH = -log[9.71 x 10⁻⁸]
pH = 7.01
The arrangement of valence electrons in metals can be best described by the
A sea of electrons.
