2
The answer is 1 or two but:-
Copper has an electronic configuration of [Ar] 3d10 4s1
Copper is a transition metal and the simple concept of valence electrons is difficult to apply to these. You could say 1, expecting the 4s electron to be lost, which does happen to form Cu+ , cuprous, compounds. However copper readily forms Cu2+ in cupric compounds, e.g. in copper sulfate. In these one of the d electrons is also lost to give a d9 configuration.
Other oxidation states such as copper (III) and copper(IV) are known.
This is a chemical element. You can find the how many electron in a single atom by using a periodic table.
Lithium has 1 valence electron.
Lawrencium is a trivalent chemical element.
good conductors have only one or two electrons in the outer shell while insulators have many more, around eight
The element chlorine has seven electrons in its valence shell.
one valence electron
only one valance electron does a conductor such as copper have.
8
3
This is a chemical element. You can find the how many electron in a single atom by using a periodic table.
This is a chemical element. You can find the how many electron in a single atom by using a periodic table.
Depending on how many valence electrons in the element has, The other element could take away a valence electron to make eight
Copper is element number 29. Thus, neutral copper has 29 protons and 29 electrons. The first 29 orbitals are filled as 1s2 2s2 2p6 3s2 3p6 4s1 3d10, thus copper has only one valence electron in its 4th shell.
There is just one valance electron in the element potassium.
Lithium has 1 valence electron.
Lawrencium is a trivalent chemical element.
good conductors have only one or two electrons in the outer shell while insulators have many more, around eight