0
Lead is the heaviest non-radioactive element. It was previously thought to be Bismuth, but in 2003, it was found to be weakly radioactive with a half-life of about 19 quintillion years (19 billion billion years). Because of it's ridiculously long half-life, Bismuth can be treated as if it is stable, but it will eventually decay into Thallium.
Wiki User
∙ 6y ago
Wiki User
∙ 13y agoWiki User
∙ 11y agoWiki User
∙ 13y agoCesium, in the lower left corner of a partial periodic table that includes only non-radioactive elements.
Wiki User
∙ 14y agothe answer is lead
Wiki User
∙ 13y agoRadon
Anonymous
Radon?
Add your answer:
Earn +20 pts
Is Uranium Chemically Active?
No uranium is not chemically active
The most active of all the chemical elements is a halogen known as?
The most chemically active element is the halogen known as fluorine. Be
What element is most chemically active of all the halogens?
Fluorine
Is oxygen an active nonmetal?
yes
Is the element sodium a metal nonmetal or metalloid?
Salt is a compound of Sodium (Na) and of Chlorine (Cl), thus, it is a nonmetal because it is a compound of 2 nonmetals. Na is not a nonmetal it is a highly active metal. This can be easily googled.
What is the most chemically active nonmetal on the planet?
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 is the most active nonmetal in the periodic table of the elements?
The most active nonmetal element is fluorine.
What is is the most active nonmetal?
Fluorine
Where is the most active metal located on the periodic table Where is the most active nonmetal located?
The most active metal is francium (Fr). It is located farthest to the left and at the bottom. The most active nonmetal is fluorine (F). It is located at the top of Group 17 (the halogens).
What is the most chemically active of the elements?
Fluorine
What are the kinds of nonmetal atoms?
Any element that is not a metal is, by definition, a nonmetal. These come in basically two types, the chemically active nonmetal and the inert nonmetal. Sulfur, oxygen, nitrogen, carbon, silicon, phosphorus, and the halogens, fluorine, chlorine, bromine, iodine, and astatine, are the most important of the chemically active nonmetals; hydrogen is an ambiguous element since it can be either a metal or a nonmetal, although it is usually a nonmetal (note that at low temperature and high pressure, hydrogen actually will become a metallic solid, with all the usual features of a metal, even though under more usual temperatures and pressures it is a transparent gas bearing no resemblance to a metal). The inert nonmetals are the noble gases, helium, neon, krypton, xenon, and radon.
What is the most chemically active nonmetals called?
Halogens
Is Uranium Chemically Active?
No uranium is not chemically active
What non-metal element is most chemically active?
Hydrogen...
The most active of all the chemical elements is a halogen known as?
The most chemically active element is the halogen known as fluorine. Be
Which is most chemically active CI2 or F2?
Fluorine is the more reactive.
