Want this question answered?
The lanthanide and actinide series. Trait of lanthanide: Lanthanum, element 57. Trait of actinide: actinium, element 89.
The lanthanide and actinide series. Trait of lanthanide: Lanthanum, element 57. Trait of actinide: actinium, element 89.
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.
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.
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.
No uranium is an actinide and is very hard especially depleted uranium
The 4 corners of the block are Sc, Zn, Cn and the icon for the actinide series, to the left of Rf. This is also known as the transition metals
The lanthanide and actinide series. Trait of lanthanide: Lanthanum, element 57. Trait of actinide: actinium, element 89.
The actinide series
the two groups of metals is the Lanthanide series and the Actinide series.
The lanthanide and actinide series. Trait of lanthanide: Lanthanum, element 57. Trait of actinide: actinium, element 89.
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.
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.
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.
No, they are in 4th series of transition metals.
Most scientists describe a "transition metal" as any element in the d-block of the periodic table, which includes groups 3 to 12 on the periodic table. The f-block 'lanthanide and actinide' series are also considered transition metals and are called "inner transition metals".
They are the Alkali Metals, Alkaline Metals, Transition Metals, Metalloids, Halogens, and the Noble (Inert) Gases. There is also the lanthanide and actinide series which are known as the Rare Earth Metals.