Four sub-shells: s, p, d, f . Only artificially / theoretically in quantum mechanics there is a 5th sub shell 'g' and maybe 'h' is the 6th
The second shell of an atom has two sub-shells: the 2s and 2p sub-shells. The 2s sub-shell can hold a maximum of 2 electrons, while the 2p sub-shell can hold a maximum of 6 electrons, allowing the second shell to accommodate a total of 8 electrons.
Elements in period 5 of the periodic table have a total of four sub-shells: s, p, d, and f. The electron configuration of these elements includes the 5s, 5p, and 4d sub-shells, with the 4f sub-shell being filled in the subsequent period (period 6). Therefore, the total number of sub-shells available for elements in period 5 is four.
The Earth's core is the largest of the four shells and contains three sub-layers: the inner core, outer core, and mantle. The core is mainly composed of iron and nickel and is responsible for generating the planet's magnetic field.
Curium has seven electron shells.
Yttrium has five electron shells.
3
3
4 s , p , d , 7
The second shell of an atom has two sub-shells: the 2s and 2p sub-shells. The 2s sub-shell can hold a maximum of 2 electrons, while the 2p sub-shell can hold a maximum of 6 electrons, allowing the second shell to accommodate a total of 8 electrons.
NO!
Elements in period 5 of the periodic table have a total of four sub-shells: s, p, d, and f. The electron configuration of these elements includes the 5s, 5p, and 4d sub-shells, with the 4f sub-shell being filled in the subsequent period (period 6). Therefore, the total number of sub-shells available for elements in period 5 is four.
Numbers, according to shells and sub-shells which could be octets or duets.
900 energy shells.fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
As you go from s to p to d and then to f, you get further from the nucleus.
's', 'p' and 'd'
The Earth's core is the largest of the four shells and contains three sub-layers: the inner core, outer core, and mantle. The core is mainly composed of iron and nickel and is responsible for generating the planet's magnetic field.
Your question reveals a common confusion between orbitals and shells. Chlorine has three electron shells: the first, second and third. The first shell has just the one orbital, the 1s The second shell has two sub-shells, the 2s and the 2p. There are three p orbitals in the 2p sub-shell. Each orbital can hold two electrons, so there are eight electrons maximum in the second shell. The third shell likewise has two sub-shells, the 3s and the 3p, but the 3p is not completely filled, leaving room for one more electron. When chlorine gains this electron it will become a Cl- ion. This is summed up in the electron configuration 1s22s22p63s23p5.