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What is the name of any element of the actinide series which have atomic numbers from 89 actinium Ac through 103 lawerencium Lr?
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∙ 12y ago
This is the actinoid family.
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∙ 12y ago
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Where is the actinide series found?
Actinide series are in period 7, starts after Actinium(89) next with atom numbers 90 till 103, in group 3'A': the 5f suborbital is 'fiiled up' with 0-14 electrons. Uranium (92) is the most known and the last natural occurring ('stable' isotope mass 238) element.
What is the first actinide element?
ActinidesThis 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.
What family does Curium belong to on the periodic table?
curium belongs to the actinide series on the periodic table. The actinides are a group of elements in the seventh period of the periodic table, and they follow actinium (Ac) and precede lawrencium (Lr). The actinide series includes elements with atomic numbers from 89 to 103. Curium has the atomic number 96 and is represented by the symbol Cm.
Metal with an atomic number of 83?
The Periodic Table lists the elements in the order of there atomic numbers. The number on the top of each square is the atomic number of the element.
The first period at the bottom called?
Lanthanides
What is the first element of the actinides?
The first element in the actinide series is actinium , a chemical element in the periodic table that has the symbol Ac and atomic number 89.The actinide (or actinoid) series encompasses the 15 chemical elements that lie between actinium and lawrencium on the periodic table , with atomic numbers 89-103.The actinides get their name from the first element in the series , actinium.
Where is the actinide series found?
Actinide series are in period 7, starts after Actinium(89) next with atom numbers 90 till 103, in group 3'A': the 5f suborbital is 'fiiled up' with 0-14 electrons. Uranium (92) is the most known and the last natural occurring ('stable' isotope mass 238) element.
What is the first actinide element?
ActinidesThis 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.
What family does Curium belong to on the periodic table?
curium belongs to the actinide series on the periodic table. The actinides are a group of elements in the seventh period of the periodic table, and they follow actinium (Ac) and precede lawrencium (Lr). The actinide series includes elements with atomic numbers from 89 to 103. Curium has the atomic number 96 and is represented by the symbol Cm.
Where are the actinides placed in the periodic table?
The actinide series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium. There are two rows below the periodic table, the first row is lanthanides and the second row is actinides.
What is a actinide?
Any of a series of chemically similar, radioactive elements with atomic numbers ranging from 89 (actinium) through 103 (lawrencium). they are outer transition elements All of these elements are radioactive, and two of the elements, uranium and plutonium, are used to generate nuclear energy
What are the difference between plutonium and uranium?
Uranium and plutonium are very heavy metals belonging to the element category actinide encompassing the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium. Three uranium isotopes occur in nature versus only trace amounts of one isotope of plutonium. Of course the nuclear, chemical, physical and toxicological properties of uranium and plutonium are very different.
Metal with an atomic number of 83?
The Periodic Table lists the elements in the order of there atomic numbers. The number on the top of each square is the atomic number of the element.
Where is the Actinide series located on the periodic table?
The second row of the bottom 2 rows under the periodic table. (Period 7, starting at Group 4)
Is a charaterists of actinides?
Actinide series, a series of radioactive metallic elements in Group 3 of the periodic table. Members of the series are often called actinides, although actinium (Ac, atom no. 89) is not always considered a member of the series. The series always includes the 14 elements with atomic numbers 90 through 103. The other members are (in order of increasing atomic number) thorium, protactinium, uranium, neptunium, plutonium, americium, curium, berkelium, californium, einsteinium, fermium, mendelevium, nobelium, and lawrencium. Thorium (90) isotope-232 and uranium-238 are the only actinides found in the earth's crust in appreciable quantities, although small amounts of neptunium and plutonium have been found in uranium ores. Actinium and protactinium (91) are found in nature as decay products of some thorium and uranium isotopes. All the others have only been synthesized in small quantities (see synthetic elements). Study of the properties of the actinides is hampered by their radioactive instability. It is known, however, that all members of the series resemble actinium and each other in their chemical properties and that they have a strong chemical resemblance to their homologs in the lanthanide series. The actinides are reactive and assume a number of different valences in their compounds. As the atomic number increases in this series, added electrons enter the 5f electron orbital. Elements in this series with atomic numbers greater than that of uranium (92) are called transuranium elements. Elements with atomic numbers greater than 103 are not members of the actinide series; element 104 (rutherfordium) is the first of the transactinide elements.
How are the actinide series elements created?
Elements with atomic numbers 89-94: natural elements.Elements with atomic numbers 95-98: artificial elements but they are also discoverd in nature as ultratraces.Elements with atomic numbers 99-103: artificial elements.
Why are the atomic mass numbers of an element not hole numbers?
Its the average of the weight of the different isotopes of that element.
