2
The outermost shell contains two electrons.
No. Argon has eight electrons in its outer shell and magnesium has two electrons in its outer shell.
Alkaline earth metals have 2 electrons in their outer shell.
Copper is an example of a metal that can use its inner shell before outer shell electrons to bond. It has a configuration of 3d104s1, and the 4s electrons are used before the 3d electrons in bonding reactions.
Magnesium has a total of 12 electrons. The electron configuration would be 1s2 2s2 2p6 3s2. Therefore, 2 electrons in it's outer shell.
A chloride anion contains eight outer shell electrons, one more than the seven outer shell electrons found in a chlorine atom.
Nitrogen has five electrons in its outer shell and bromine has seven in its outer shell.
Copper is a non metal element. There are 29 electrons in a single atom.
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It would be a non-metal and a halogen. Group 18 or the noble gases, all have 8 electrons in their outer shell. Therefore, the group before it would have seven electrons in the outer shell. This group is made up of all non-metals.
Alkali earth metals have 2 electrons in their outer energy level. This outer level is known as the valence shell, and having 2 electrons makes these metals highly reactive and likely to form ionic bonds to achieve a full outer shell of 8 electrons.
You mean valence electron? 2 If your talking about Bohr Diagrams then it depends on the metal