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They are mostly Synthetic elements (when nuclear particles are forced to crash into one another by a particle accelerator (machine)).
These Elements are Radioactive.
Wiki User
∙ 12y ago
Wiki User
∙ 9y agoThe unique property of the actinide series is that all of the elements contained in it are radioactive. Actinides are very dense metals that are extremely electropositive.
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∙ 8y agoAll actinides are radioactive elements and some are man made.
Wiki User
∙ 12y agoThey are all radioactive.
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∙ 16y agoTheir explosive reactivity to water.
Wiki User
∙ 12y agothe actinide series are radioactive
Wiki User
∙ 13y agoThey are all radioactive and unstable.
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Is protactinium a metal?
Because the properties (chemical and physical) of protactinium are the general properties of metals.
Properties of metals include?
What are the 3 properties of metals?
Do elements that have some properties of metals and some properties of non metals are called halogens?
No, they are not.
Is malleable properties of both metals and non metals?
metals
What is a type of element that has some of the properties of metals and non metals?
semi-metals
What are general properties of a metalloid?
The general properties of a metalloid are a combination of the properties of both metals and non-metals. Aside from those properties, they have the unique property of being semi-conductors.
Is the actinide series soft metals?
No uranium is an actinide and is very hard especially depleted uranium
Is protactinium a metal?
Because the properties (chemical and physical) of protactinium are the general properties of metals.
Are lanththanide and actinide transition metals?
Now actinoids and lanthanoids are considered as transition metals.
Are actinide and lanthanide series is transition metals?
Actinides are all soft and silver in color (but not when exposed to air). They are dense and malleable. Most actinides have the same properties as the d-block.
What are the two metal groups?
the two groups of metals is the Lanthanide series and the Actinide series.
What has properties of metals and non metals?
The metalloids have properties of both metals and nonmetals.
What two groups are metals are classified under?
Most scientists regard metals in one of three groups Alkali, alkaline earth metals, and transition metals. The transition metals are further divided into lanthanides and actinides groups on the periodic table. One could also consider metals divided by ferrous and non-ferrous. This generally speaks of iron carrying metals and magnetic properties versus non-iron and nonmagnetic.
Are all actinids radioactive?
There are a total of 15 actinides in the actinide series and each are chemical elements with metallic properties. All of the actinide elements are radioactive and upon radioactive decay they release energy.
Properties of metals include?
What are the 3 properties of metals?
Do metals have properties of metallic and non metallic?
No, metalloids have properties of metals and nonmetals.
Where in the periodic table we can fond transition metal element?
The bottom two rows of Lanthanide & Actinide is the transition metals
