An element with an atomic number 12 has 12 electrons. The electronic configuration is 1s2, 2s2, 2p6, 3s2. Now this element has two electrons in excess of the closest Nobel gas. The electrons in the 3rd shell take part in all chemical reactions of the element.
The element has metallic properties.
The ions formed by the atoms of the element are positively charged and they have two positive charges as two electrons are lost when it reacts with other elements. If the element has a symbol A, the ions are denoted as A2+.
It forms ionic bonds with other elements.
A element has 12 electrons. Is it a metal or non-metal, what type of bonds does it form and what is its electronic configuration when it forms bonds?
the electron configuration would be `1s^2 , 2s^2, 2p^6, 3s^2` .
this type of element would form an ionic bond, as it you give up its 2 electrons to gain a pseudo noble gas configuration