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This is a group of elements within the Periodic Table and are also known as the transuranics. The name refers to those elements with increasing atomic no. from actinium, which all have similar chemical properties, like the lanthanides. The first few members of the group are the naturally occurring elements actinium, thorium, proactinium and uranium. Beyond this elements have been made artificially by radioactive bombardment. These artificial elements are unstable, some have very short lifeimes and undergo spontaneous radioactive decay.
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∙ 12y ago
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∙ 12y agoActinium.
The actinides (like the lanthanides) are named after their first member.
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∙ 10y agoencompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium
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∙ 9y agoAn actinide is one of the fourteen radioactive elements of the periodic table which are positioned underneath the lanthanides.
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Is actinide considered a synthetic element?
Actinide is not an element, but is a series of elements. Of the actinide series of elements, all except actinium, thorium, protactinium, and uranium are considered to be synthetic elements because they are not found in nature in appreciable amounts.
Consequence of actinide contraction on actinide element?
as a consequence of actinide contraction the radius of the metal atom decreases as the 5f electrons of the actinides are poorly shielded. (Due to this poor shielding it is more strongly attracted by the nuclear charge resulting in decreased radius)
In what type of orbitals are the actinide and lanthanide electron found?
f block element
What is the element used to analyze ores for gold and silver?
Californium (Cf) is an element in the actinide series who's most common use is in gold and silver prospecting.
What is the name of any element of the actinide series which have atomic numbers from 89 actinium Ac through 103 lawerencium Lr?
This is the actinoid family.
Plutonium is a type of lanthanide or actinide or regular transition element?
Plutonium is an actinide
What type of element is uranium?
Actinide
Is the element Thorium an actinide fuel?
Th, element 90, spelled thorium, is an actinide and has been used as a nuclear fuel (see Wikipedia.)
What is the name of two series of inner Transition elements?
The lanthanide and actinide series. Trait of lanthanide: Lanthanum, element 57. Trait of actinide: actinium, element 89.
Is actinide considered a synthetic element?
Actinide is not an element, but is a series of elements. Of the actinide series of elements, all except actinium, thorium, protactinium, and uranium are considered to be synthetic elements because they are not found in nature in appreciable amounts.
What are the series of inner transitions elements and what is a trait of each?
The lanthanide and actinide series. Trait of lanthanide: Lanthanum, element 57. Trait of actinide: actinium, element 89.
What are the two series of inner transition elements and what is the trait of each?
The lanthanide and actinide series. Trait of lanthanide: Lanthanum, element 57. Trait of actinide: actinium, element 89.
What element is the heaviest actinide that occurs natrually on earth?
Uranium
Which actinide element is the heaviest that occurs natturally on earth?
URANIUM (:
What element is the actinide named for the creator of the Periodic Table?
The element that is an actinide and named for the creator of the periodic table is Mendelevium (Md). Mendelevium has atomic number 101 and is named after Dmitri Ivanovich Mendeleev.
Where is thorium located on the periodic table?
The atomic number of thorium, Th, is 90 and it is an inner transition element in the Actinide series. The Actinide series is the second of the two series shown by themselves. It starts Actinium, Thorium, Protactinium, and Uranium, so Thorium is the second element in the Actinide series.
What is Metallic element beginning With you?
Uranium (part of the actinide series of the periodic table)
