It is not true; many metals are very reactive and several nonmetals are nonreactive.
Well, for starters, if it explodes and you become harmed, injured, mamed, disfigured, dead or disintegrated, then you have your answer, just have your pen and notebook ready when you test any element that you think may be reactive, because you JUST MAY not have much time to write that sucker down.
Sodium has no particular taste or odour.Sodium is highly reactive: it reacts so violently with water (or moisture) that it needs to be stored under oil. The reaction is exothermic (giving out a lot of heat) and produces the highly corrosive sodium hydroxide. As a result what you might taste or smell of sodium is more likely to be the taste or smell of tissue in your mouth or nasal passage suffering chemical burns.
Gold is the least reactive metal.
The seeds are highly toxic and can cause hemagglutination. The berries can and have been cooked into a jelly or pie (provided the seeds are completely strained out) but any food use is considered controversial due to the toxicity of the seeds.
Iron (Fe) is a transition metal, and it's used to make steel. Steel is the most common metal in modern civilization, and it is used as a structural element in everything from the cases of equipment, to vehicles to the framework for the largest buildings we construct. Aluminum (or aluminium, Al) is a poor metal, and we use it for almost countless purposes. It is present in any smaller items from the size of of a car on down that need light, strong metal to build it. And there would be absolutely no aviation industry without aluminum because it is used to make structural elements in 99% of the planes currently flying. Sodium (Na) is an alkai metal, and it is highly reactive. It is so highly reactive that we never find it free in nature, but we only encounter it in combination with other elements. A common compound containing sodium is sodium chloride (NaCl), which is table salt.
Lead is a moderately reactive metal. It reacts slowly with air and water, but does not react as vigorously as highly reactive metals like sodium or potassium.
Fluorine and oxygen are the most chemically reactive nonmetals. Fluorine is the most reactive nonmetal, readily reacting with almost all other elements, while oxygen is highly reactive and forms compounds with most elements in the periodic table.
Ytterbium is a reactive element, but it is primarily reactive with air and water, rather than being highly reactive in general. It is not as reactive as some other metals like alkali metals such as sodium or potassium.
The most reactive nonmetals on the periodic table are the halogens, specifically fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). These elements readily react with metals to form ionic compounds and are highly reactive due to their strong tendency to gain an electron to achieve a stable electron configuration.
The most reactive nonmetals are located in the top right corner of the periodic table within Group 17, also known as the halogens. Elements like fluorine, chlorine, bromine, and iodine are highly reactive nonmetals due to their strong desire to gain an extra electron to achieve a stable electron configuration.
Group 17 elements, also known as the halogens (e.g. fluorine, chlorine), are highly reactive due to their tendency to gain one electron to achieve a stable electron configuration. They readily react with other elements to form salts and compounds.
The halogens, periodic table column 17, are the most reactive nonmetals, because they have the highest electronegativities and therefore can strongly attract electrons from almost any other elements.
The highly reactive non-metals are in the halogen group. They just need one more electron to fill the octet. Therefore they are highly reactive. For example fluorine and chlorine. And the highly reactive metals are placed in the first group (alkali metals). For example Sodium and potassium.
Cerium is reactive but not highly reactive.
Halogens are nonmetals. They belong to group 17 of the periodic table and include elements such as fluorine, chlorine, bromine, iodine, and astatine. They typically exist in the form of diatomic molecules with highly reactive properties.
First of all, all halogens are non-metals. Secondly, the most reactive is fluorine, which reacts to nearly everything, hence it is rare. After fluorine comes chlorine, then bromine and iodine.
Group 17 (known as Halogens)