An eight-faced 3D shape is called an octahedron.
Any 3D shape (polyhedron) ends in -hedron, just like any 2D shape (polygon) ends in -gon, and octa- means 8.
Two electrons can occupy the 2s subshell, and 8 electrons can occupy the 3d subshell.
[Ar] 3d^8 4s^2
A nickel atom has an atomic number of 28, which means it has 28 electrons. Its electron configuration is [Ar] 3d^8 4s^2. In this configuration, the 3d subshell contains 8 electrons, with 2 of them unpaired. Therefore, a nickel atom has 2 unpaired electrons.
Nickel (Ni) has an atomic number of 28, which means it has 28 electrons. Its electron configuration is [Ar] 3d^8 4s^2. In this configuration, the 3d subshell has 8 electrons, with 2 of them paired and 6 electrons remaining, resulting in 2 unpaired electrons. Therefore, nickel has 2 unpaired electrons.
Sulfur
A OctahedronThis shape has 8 faces.
It is an octahedron. There are 257 topologically distinct octahedra: with 6 to 12 vertices.
an octahedron p.s i am only a small little girl so i migt get this wrong.
The 3D shape with 2 octagons and 8 squares is called a truncated square antiprism. It is a type of prism where the top and bottom faces are octagons, and the side faces are squares. This shape has a total of 10 faces, including 2 octagons and 8 squares.
8
Octahedron
octahedron
cube
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Octahedron
A cube is one
a octahedron