The valence electrons of an atom are those electrons that are in its outer energy shell or that are available for bonding. The electrons more loosely held by the nucleus - are the ones that are gained, lost or shared.
I assume you are referring to valence electrons (the "outermost" shell varies widely in the number of electrons it can hold, the valence electrons are a subset of this which are responsible for chemical bonding and reactivity).The number of valence electrons can only be from 1 electron to 8 electrons, these are divided between the s and p orbitals of a shell (each orbital can hold no more than 2 electrons).
The inner orbits (closer to the nucleus) hold fewer electrons than the outer orbits. Each orbit has a maximum capacity of electrons it can hold based on its energy level. The further away an orbit is from the nucleus, the higher its energy level and the more electrons it can hold.
2 electrons (maximum) in the first energy level.
More the number of shells in an atom, more away will be the electrons from the nucleus. Hence, weaker will be the attraction between nucleus and outermost electrons. So atom with more shells will let go their electrons easier than atoms with fewer shells.
Nucleus of an atom has a strong hold on electrons because of the attractive force between the positively charged nucleus and negatively charged electrons. This attraction keeps the electrons in orbit around the nucleus, forming the structure of the atom.
The valence electrons of an atom are those electrons that are in its outer energy shell or that are available for bonding. The electrons more loosely held by the nucleus - are the ones that are gained, lost or shared.
The shell closest to the nucleus of an atom can only hold up to two electrons.
I assume you are referring to valence electrons (the "outermost" shell varies widely in the number of electrons it can hold, the valence electrons are a subset of this which are responsible for chemical bonding and reactivity).The number of valence electrons can only be from 1 electron to 8 electrons, these are divided between the s and p orbitals of a shell (each orbital can hold no more than 2 electrons).
Electrons
The third shell........nucleus
Neon has 8 electrons in its outermost orbit. The outermost orbit, also known as the valence shell, can hold a maximum of 8 electrons. Neon is a noble gas and has a full valence shell, making it stable and unreactive.
The number of valence electrons depends on the element and it could have 1 to 8 valence electrons.
Valence shell is outermost shell of an atom.It cannot hold more than 8 electrons.
Electrons exist in the electron cloud that surrounds the nucleus of an atom. This cloud is made up of the various orbitals that hold the electrons. Orbitals are regions of space in which the probability of finding an electron is the highest. The electrons orbit the nucleus in these orbitals and can move from one orbital to another as they gain or lose energy. 1s Orbital: This orbital is closest to the nucleus and can hold up to two electrons. 2s Orbital: This orbital is farther away from the nucleus and can hold up to two electrons. 2p Orbitals: These orbitals are even farther away from the nucleus and can hold up to six electrons. 3s Orbital: This orbital is farthest away from the nucleus and can hold up to two electrons. 3p Orbitals: These orbitals are even farther away from the nucleus and can hold up to six electrons. 3d Orbitals: These orbitals are the farthest away from the nucleus and can hold up to ten electrons.These orbitals are filled in a specific order with the 1s orbital being filled first then the 2s 2p 3s 3p and finally the 3d orbitals. The electrons in the outermost orbitals are called valence electrons and are responsible for the chemical properties of the atom.
The inner orbits (closer to the nucleus) hold fewer electrons than the outer orbits. Each orbit has a maximum capacity of electrons it can hold based on its energy level. The further away an orbit is from the nucleus, the higher its energy level and the more electrons it can hold.
In the first energy level, there are two electrons.In the second and outermost energy level, there are eight electrons.In every atom of neon, there are two energy levels.Since Neon's atomic number is ten, it has ten electrons ( 2 + 8 = 10 )