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Chlorine (halogen), because Argon is a Nobel gas
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∙ 12y ago
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∙ 13y agoIt is 3rd member of Halogens family the Bromine.
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∙ 9y agoThe element in Period 4 in the most chemically active non metal is Br. Periodicity is best defined as the repeating nature of physical and chemical properties with increasing atomic numbers.
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∙ 12y agoFluorine
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∙ 10y agoCl
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Does group 7A of the periodic tables contain the least reactive nonmetals?
The halogen group is the MOST reactive nonmetal group.
What is the most active nonmetal in the periodic table of the elements?
The most active nonmetal element is fluorine.
Which element is the most reactive of Hf Cs Ba or Lu?
Caesium is the most reactive.
What is element is the most chemically reactive?
Hydrogen
Why fluorine is more reactive than oxygen?
No, fluorine is the most reactive element that exists.
Which elements of the halogen family is the most reactive nonmetal?
The most reactive nonmetal is fluorine
What metal is the most reactive element?
The most reactive metal is is francium, though cesium is often given this title due to francium's extreme rarity and short half life. The most reactive element is commonly said to be fluorine. But fluorine is a nonmetal.
Which element in period 2 of the periodic tabke is the most reatcive nonmetal?
Fluorine.
What gas is the most reactive of all elements?
Francium is the most reactive metal and fluorine the most reactive nonmetal.
Which element of period 2 is the most reactive non metal?
fluorine
Which of these elements is the most chemically active?
Fluorine is sometimes called the hungry wolf of the periodic table because it is the most reactive element.
What group of non metals are the most reactive?
The most reactive nonmetal is fluorine. Fluorine is a halogen, which is Group 17 on the Periodic Table, and the halogens are the most reactive...
Which element in period 4 is classified as an active nonmetal?
In the fourth period of the periodic table of elements, the most reactive element is potassium. It is an alkali metal, and it has the atomic number of 19.
Is carbon a very reactive non metal?
Carbon is a very reactive nonmetal but not the most reactive.
What are the 2 most reactive element found in the second period?
lithium and fluorine
Which element would be most reactive?
Fluorine is the most reactive element.
What is the most reactive of all the chemical elements?
The most reactive chemical element is fluorine. Reactivity of the elements increases as we go down and to the left on the periodic table, and it also increases as we go up and to the right on the table.
