The answer which I found turns out to be energy level
There are infinite energy levels in an atom. They fill in the increasing order of their energy, the energy level with the lowest energy is located nearest to the nucleus.
2, then 8, then 18 then i have no idea!
5
the blank is shell
Electrons -- in energy levels outside the nucleus. Protons in the nucleus. Neutrons in the nucleus.
valence electrons
electrons are arranged in energy levels, or shells, around the nucleus of an atom.
No. Lower energy levels and their electrons are closer to the nucleus than higher energy levels and their electrons.
Electrons
Electrons occupy special regions called energy levels, or shells, which surround the nucleus.
the blank is shell
Electrons are located on Energy levels (shells) which surround the Nucleus which is made up of Protons and Neutrons.
Electrons surround the nucleus. Sometimes called a cloud, sometimes described in terms of energy levels. Their charge is -1.
Electrons are arranged around the atomic nucleus forming the electron clouds.
Niels Bohr first suggested that electrons orbited the nucleus in fixed energy levels.
Electrons -- in energy levels outside the nucleus. Protons in the nucleus. Neutrons in the nucleus.
They are located in the electron cloud of an atom. ---------- Electrons (very low mass particles with negative electrical charge) are placed around the nucleus of an atom in electron shells, with different energy levels; because the nucleus contain protons the electrical charge is positive. The electron cloud is a model of quantum mechanics.
Electrons
valence electrons
Electrons occupied certain discrete energy levels around the nucleus.