When they fill their outermost energy levels. Metals will WANT more electrons and Non-Metals will have EXTRA electrons to give. So in a way, Metals will actually fill their outermost energy levels while Non-Metals will empty them; all with the goal of having a FULL valency shell which is stable. This is the basis for ionic bonding.
the group number shows the number of electrons in the outermost energy levels. forexample sodium (Na) have 1 electron in the outermost shell and is placed in the group 1. Elements are grouped in rows depending on their energy levels, or valence electron numbers. Columns of elements are those that are chemically similar, or react
The noble gas elements have outermost energy levels with full s and p orbitals.
located in the outermost energy levels.
In covalent compounds, atoms become chemically stable by sharing electrons with each other to fill their outermost energy levels. By sharing electrons, atoms can achieve a full outer electron shell, which is typically 8 electrons for most elements (except for hydrogen and helium which need 2 electrons).
Transition metals are the ones that can form ionic bonds by losing electrons from both the outermost and next to outermost principal energy levels. This is because transition metals have multiple oxidation states due to the presence of partially filled d-orbitals. By losing electrons from different energy levels, these metals can achieve a stable configuration.
One electron in outermost energy level.
Helium has completely filled orbitals / energy levels and is chemically inert. So it has no chemically property.
no!
The element carbon
reactive
the noble gases, in row 18
An atom with an incompletely filled outermost energy level is likely to be reactive. This is because atoms tend to gain, lose, or share electrons to achieve a stable outer electron configuration. Atoms with incomplete outermost energy levels are looking to fill or empty their outermost energy level to achieve stability.