Answer: Boron is the element which has properties of both metals and nonmetals.
Explanation:
Metals are defined as the elements which loose electrons to attain stable electronic configuration. They attain positive charge and form cation. Example: Zinc (Zn), Aluminium (Al) , copper (Cu)
Non-metals are defined as the elements which gain electrons to attain stable electronic configuration. They attain negative charge and form anion. Example: Chlorine (Cl) , Sulphur (S)
Metalloids are defined as the elements which show properties of both metals and non-metals. There are 7 metalloids in the periodic table. They are Boron (B) , Silicon (Si) , Germanium (Ge) , Arsenic (As) , Antimony (Sb), Tellurium (Te) and Polonium (Po).
Thus boron is the element which has properties of both metals and nonmetals.
Answer: P2O5
Explanation: You divide both subscripts by 2 to get the empirical formula.
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From Simplest to Most Complex, it follows this order.
Cells
Tissue
Organs
Organ Systems
Organisms
Given a sentence and an exmaple about them:
Cells: They are the fundamentals in all living things. They have a nucleus, cytoplasm, and organelles which is all surrounded by a cell membrane. Example: Skin Cells, Blood Cells.
Tissue: It is close to Cells, it consists of the material that animals and plants are made, but it also consists specialized cells and their product. Example: Muscle Tissue, Epithelial Tissue.
Organs: Pretty much a part of the body that specializes in a specific function. Example: Liver, Stomach.
Organ System: This is kind of like Organs, however they are a system of organs that rely on each other, whether it is directly or indirectly. Examples: Muscular System, Circulatory System.
Organelles: These are the parts that makes up what a cell is. Exmaple: Golgi Body, Lysosomes.
Answer:
42.9
∘
C
Explanation:
The idea here is that the problem is providing you with the amount of heat needed to raise the temperature of a given sample of water from an initial temperature to its boiling point, i.e. to 100