Neithr!!!
An atom of Cobalt contains 27 electrons.
The anion of chloride (Cl⁻) has 18 electrons, as it has gained one electron to achieve a stable electron configuration. Chloride has 17 electrons in its neutral state, but when it gains an electron, it becomes Cl⁻ with 18 electrons.
The electron shell arrangement of caesium is 2, 8, 18, 18, 8, 1. This means it has 2 electrons in the first shell, 8 in the second, 18 in the third, 18 in the fourth, 8 in the fifth, and 1 in the sixth shell.
3s^2 3p^6 3d^10 18 electron altogether in the third shell.
There are 18 valence electrons represented in the Lewis electron-dot structure for SO2.
The ion of potassium (K) would have 18 electrons after losing 1 electron. This is because the element loses 1 electron to achieve a stable electron configuration, similar to the nearest noble gas (argon) with 18 electrons.
The charge of an electron is .16 E-18 Coulombs.
16 protons and 18 electrons
A sulfide ion has 16 protons and 18 electrons. The additional electron gives the ion a negative charge, making the number of electrons greater than the number of protons.
Silver's electron configuration is 2, 8, 18, 18, 1.
Argon has 18 electrons in its electron cloud.
16 + 16 + 18 + 18 = 68
im eleven and i know the answer the answer is 18 nuetrons
The sulfide ion (S²⁻) has 16 protons and 18 electrons. This is because the element sulfur (S) normally has 16 protons and 16 electrons, but by gaining two extra electrons to achieve a stable electron configuration, it becomes the sulfide ion with 18 electrons.
The electron configuration Ar4s²3d⁷ corresponds to the element cobalt (Co), which has an atomic number of 27. In this configuration, "Ar" represents the noble gas argon, which accounts for the first 18 electrons. The 4s² indicates two electrons in the 4s subshell and the 3d⁷ indicates seven electrons in the 3d subshell, totaling 27 electrons for cobalt.
Electron shells fill in the order 2, 8, 18, 18, 32, 32
18 is 16% of 100*18/16 = 112.5
I assume you mean that orbital 1 has 2 electrons, orbital 2 has 8 and orbital 3 has 8. The electron configuration of this is 1s2 2s2 2p6 3s2 3p6 (2+2+6+2+6=18) 18 is the atomic number of 18Ar or Argon.