Answer:a successful classification or division implies the presence of the object own of each science and its relations with other related areas, the method or requirement of each science to face its object, and also its purpose for which poduce the fact of investigation.
Explanation:
Science is divided into numerous areas, each of which has as its object only a part of all the knowledge acquired, through experience and research.
The primary objective of science, is to improve the quality of life of humans, also helps solve everyday questions.
Science can be subdivided according to its object, its method, others by its affinity, complexity and dependence, however all classification tends to seek the links or relationships between the different disciplines or forms of knowledge, thus a successful classification or division implies the presence of the object own of each science and its relations with other related areas, the method or requirement of each science to face its object, and also its purpose for which poduce the fact of investigation.
Valance electrons are the extra electrons on the outermost orbital, that hasn't been filled yet. For example, Lithium would have one valence electron, on the 2s orbital, because that is an extra electron floating around that 2s orbital, that can be shared with others, since each element's goal is to have no valence electrons. If an orbital is filled, it therefore has no valence electrons, because valence electrons are only extra electrons, if that makes any sense.
There are many groups of the periodic table. These groups categorize electrons by the amount of valence electrons they have. The group on the far left, the alkali metals, all have one valence electrons. The alkali metals include Lithium, Sodium, and other elements, so therefore give away that one electron easily, because if they give it away they won't have any valence electrons. (This is why you often see salt, sodium chloride, because sodium gives away its one valence electron to chloride, who needs one electron to have no valence electrons.) One other notable group is the noble gases, on the far right of the periodic table. These elements have no valence electrons, so therefore won't bond easily with other elements.
Hope this helped!
Answer:
Looking for certain physical properties.
Explanation:
These properties include color, size, mass, luster, etc.
Weighing the item is a common way to find one physical property, mass.
The masses of the objects and the distance between them
-hope it helps
First you calculate the concentration of [OH⁻] in <span>solution :
POH = - log [ OH</span>⁻]
POH = - log [ 0.027 ]
POH = 1.56
PH + POH = 14
PH + 1.56 = 14
PH = 14 - 1.56
PH = 12.44
hope this helps!