Answer:
Scientists commonly use two equivalent units of temperature, the degree Celsius and the kelvin.
Explanation:
Each carbon atom covalently bonds with atoms of carbon, hydrogen, oxygen, and nitrogen.
Each carbon atom ionically bonds with atoms of oxygen and nitrogen.
Each carbon atom covalently bonds with atoms of oxygen and nitrogen.
Each carbon atom covalently bonds with atoms of carbon, hydrogen, oxygen, and nitrogen describes why carbon can form a wide variety of organic compounds. thus, option B is correct.
Valency is the combining power of an element. Elements in the same group of the periodic table have the same valency. The valency of an element is related to how many electrons are in the outer shell.
Carbon can form a wide variety of organic compounds because Each carbon atom covalently bonds with atoms of carbon, hydrogen oxygen, and nitrogen. a carbon atom can have 4 single valence electrons around it. This allows it to form covalent bonds with many different atoms.
Learn more about the valency of carbon here:
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A metal atom forms a cation, and a nonmetal atom forms an anion.
A more electronegative atom transfers electrons to a less electronegative atom.
A metal pulls electrons from another metal and produces a force of attraction.
The answer is (B) A metal atom forms a cation, and a nonmetal atom forms an anion.
(2) It has a mass of 0 and a charge of –1.
(3) It has a mass of 0 and a charge of 0.
(4) It has a mass of 4 and a charge of +2.