they contain electrons, which are negatively charged and revolve at high speed around the nucleus of an atom. the first shell (the one nearest to the nucleus) can hold a maximum of 2 electrons. the second shell can hold a maximun of 8 electrons. If there any remaining electrons they will go on the third shell. the third shell can hold a maximum of 18 electrons. the shells closest to the nucleus (inner shells) must contain their maximum number of electrons before attempting to fill the energy levels to a higher energy.
Hydrogen doesn't really have a valence shell. It has one electron only.
The outermost electron shell in an atom is called the valence shell. It contains the most reactive electrons because these electrons are involved in forming chemical bonds with other atoms.
When full, the innermost electron shell of an atom contains 2 electrons, and the outermost shell contains 8 electrons. This is known as the octet rule, where atoms tend to gain, lose, or share electrons in order to achieve a full outer shell of 8 electrons.
The largest atom is calcium which has 4 shells.
An atom shell is the outermost region of an atom where its electrons are located. It defines the boundary of an atom and determines its chemical properties, including how it interacts with other atoms in chemical reactions. The number and arrangement of electrons in the atom shell determine an atom's reactivity and stability.
Hydrogen doesn't really have a valence shell. It has one electron only.
The question is somewhat vague. If the question were written as an atom contains seven electrons in the outermost energy level and that outermost shell is a p-shell then the atom is a halogen. If the atom contains seven electrons in the outermost energy level and that outermost shell is a d-shell or f-shell then the atom is a metal.
Electron outer shell tee hee =^-^=
An octet of electrons is when the outermost electron shell of an atom contains eight electrons.
Nucleus, which contains protons and neutrons Energy Shell/Electron Cloud, which contains electrons
The outermost electron shell in an atom is called the valence shell. It contains the most reactive electrons because these electrons are involved in forming chemical bonds with other atoms.
The overall of an atom is a nucleus (protons and neutrons), and 1 or 2 electrons. The rest are for large atoms: an electron shell, electrons, an electron shell, electrons, an electron shell, electrons, an electron shell, electrons, an electron shell, electrons, an electron shell, electrons, an electron shell, electrons.
The electron shell is also called the principle energy level in chemistry and atomic physics. The shells starting closest to the nucleus names go from shell 1 or shell K, shell 2 or shell L,shell 3 or shell m, etc. Each shell contains a certain amount of electrons the first shell starts with two and the number increases for each shell.
The number of electron shells in a normal Lithium atom is 2. It has an electron configuration of 1s22s1
When full, the innermost electron shell of an atom contains 2 electrons, and the outermost shell contains 8 electrons. This is known as the octet rule, where atoms tend to gain, lose, or share electrons in order to achieve a full outer shell of 8 electrons.
The largest atom is calcium which has 4 shells.
An atom shell is the outermost region of an atom where its electrons are located. It defines the boundary of an atom and determines its chemical properties, including how it interacts with other atoms in chemical reactions. The number and arrangement of electrons in the atom shell determine an atom's reactivity and stability.