The metal is being <em>oxidized</em>.
Metals- along with other elements- are neutral and have oxidation state of in their respective elementary states.
Metal atoms can lose electrons to <em>electronegative</em> elements such as oxygen on exposure. Atoms that have lost one or more negatively-charged electrons are no longer neutral and demonstrate a positive charge. Those atoms have converted to positively charged <em>ions</em> or <em>cations</em>.
<em>Oxidation</em> is the process of <em>losing</em> electrons whereas <em>Reduction</em> refers to the process of <em>gaining</em> electrons. "OIL RIG." Metal atoms here lose electrons and are thus oxidized.
Explanation:
A covalent bond is defined as the occurrence of a bond due to the sharing of electrons between the combining atoms.
Atomic number of hydrogen atom is 1 and its electronic configuration is . So, in order to complete its octet it needs to gain or mutually shares one electron.
A covalent bond is generally formed between non-metal atoms.
Thus, we can conclude that hydrogen has only one electron that will be involved in the formation of a covalent bond.
Answer:
Explanation:
Writing electronic configuration of any element you should know atomic number of that element ,
and also electrons are filling according to their energy level and first electron is filled in the lower energy orbital
and it follows n+1 rule if n+1 is same for two orbital electron will go first in the lowest value of n.
writing electronic configuration of ion can be done like first for their neutral atom and then add or remove electron it will make things easy because there are also some eception case their you may do wrong.
remove three electron from outer most shell of AU