Use the figure 2n2 where n = the shell number. There are many levels of shells, so "inner" is not a very specific term. If you mean "inner-most" shell however, then the answer would be two, since n = 1.
18 electrons can be held in the innermost energy level of atoms in the third energy.
Atoms emit energy as light when electrons move to a lower energy level
Vibration is related to energy. Or on a more complex level, atoms posses electrons, which in the bohr model, are at different energy "levels"
In general, electrons farther from the nucleus will have more energy than electrons closer in.
The scientist who discovered that atoms have an energy level is Niels Bohr in 1913. According to his model electrons move around the nucleus much the same as the planets rotate around the sun.
the innermost energy level has the least amount of energy
there are 2 electrons in potassium's innermost energy level
Maximum of 8 electrons in second energy level.
Atoms can fill their outermost energy level by either gaining electrons from other atoms or by sharing the outermost electrons with another atom.
Atoms emit energy as light when electrons move to a lower energy level
The second energy level of atoms can hold a maximum of 8 electrons.
Calcium atoms have 8 electrons in the second energy level. However, they are not the valence electrons. The outermost electrons in a calcium atom in the ground state are 2 4s electrons. So calcium atoms in the ground state have 2 valence electrons in the fourth energy level.
protons move to a higher energy level protons move to a lower energy level electrons move to a higher energy level electrons move to a lower energy level
8
Energy level
18
32 electrons maximum
Sharing of electrons in the outer energy level of two atoms results in a covalent bond.