The third principal energy level can hold a maximum of 18 electrons. Two are in the s orbital, 6 in the three p orbitals, and 10 in the five d orbitals.
The first energy level can hold up to 2 electrons, the second can hold up to 8 electrons, the third can hold up to 18 electrons, and the fourth can hold up to 32 electrons, following the 2n^2 rule where n is the energy level number.
The third shell can hold a maximum of 18 electrons.
20 electrons would need 4 shells. The first shell can hold up to 2 electrons, the second shell can hold up to 8 electrons, the third shell can hold up to 18 electrons, and the fourth shell can hold up to 32 electrons.
Maximum of 2n2, where n is the energy level.
The first shell can hold up to 2 electrons, the second shell can hold up to 8 electrons, and the third shell can hold up to 18 electrons.
The first shell (K shell) can hold up to 2 electrons, the second shell (L shell) can hold up to 8 electrons, the third shell (M shell) can hold up to 18 electrons, and the fourth shell (N shell) can hold up to 32 electrons.
The first energy level can hold up to 2 electrons, the second can hold up to 8 electrons, the third can hold up to 18 electrons, and the fourth can hold up to 32 electrons, following the 2n^2 rule where n is the energy level number.
The third shell can hold a maximum of 18 electrons.
Maximum number of possible electrons in each shell: K - 2 L - 8 M - 8 N - 18
20 electrons would need 4 shells. The first shell can hold up to 2 electrons, the second shell can hold up to 8 electrons, the third shell can hold up to 18 electrons, and the fourth shell can hold up to 32 electrons.
The third shell of an atom can hold a maximum of 18 electrons. This shell consists of three subshells - s, p, and d - with each subshell being able to accommodate a certain number of electrons. The s subshell can hold up to 2 electrons, the p subshell can hold up to 6 electrons, and the d subshell can hold up to 10 electrons, totaling 18 electrons in the third shell.
Maximum of 2n2, where n is the energy level.
The first shell can hold up to 2 electrons, the second shell can hold up to 8 electrons, and the third shell can hold up to 18 electrons.
The first energy level can hold up to 2 electrons, the second energy level can hold up to 8 electrons, the third energy level can hold up to 18 electrons, and the fourth energy level can hold up to 32 electrons.
Shell 1: Two electrons Shell 2: Eight electrons Shell 3: Eight electrons Shell 4: Eighteen electrons
The M shell can hold a maximum of 18 electrons. This shell consists of three subshells: 3s, 3p, and 3d. The 3s subshell can hold up to 2 electrons, the 3p subshell can hold up to 6 electrons, and the 3d subshell can hold up to 10 electrons.
The 1st energy level can hold up to 2 electrons, the 2nd energy level can hold up to 8 electrons, and the 3rd energy level can hold up to 18 electrons.