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A chemical reaction in which two elements or radicals change places with two other elements is called double replacement. It is also known as double displacement. Its general pattern can be written as AB + CD --> AD + CB
The color change on metal caused by a chemical change is called tarnishing. Tarnishing can result from exposure to elements such as oxygen, sulfur, or other chemicals, leading to discoloration or darkening of the metal surface.
Noble gases.
inertness, non-reactivity
inert
Radioactive decay.
elements
This kind of reaction is called a double replacement or double displacement reaction, and has the pattern AB + CD --> AD + CB.
ReactivityThe ease and speed with which an element combines with other elements and compounds is called the "reactivity" of the element.
No.
The elements on the right side of the periodic table are called the P block elements. They are non metals. The right most elements are called noble gasses(inert gasses). These do not react with other elements.
established that radioactive elements change into other elements by emitting radiation and discovered the proton.