elements of group 1 & 2 make +ve ions, because they can easily donate one or two electrons in the outer most shell. they are more electro positive.
Calcium, dont know why.
Metallic Bonding
Calcium
metals
Metallic bonding is the attraction between positively charged metal ions and free (negatively charged) electrons.
Metallic bonding involves the bonding of two metals in the presence of a sea of electrons. These delocalised (or free-floating) electrons are able to flow freely through the metal which means an electrical current can form. Ionic bonding is when a metal and a non-metal transfer electrons between each other (creating two ions - one positive and one negative) until they both have a complete outer shell of electrons (a stable oclet). These ions are attracted to one another (since they are of opposite charge) and bond. There are no delocalised electrons, and the ions cannot move either so a current cannot form in a compound that is ionically bonded.
yes
The valence electrons are involved in chemical bonding.
Yes that is how metallic bonding is modeled - a sea of electrons.
Covalent bonding involves the sharing of electrons. Ionic bonding involves the transfer of electrons.
Ionic and covalent bonding involve electrons. Ionic bonding involves the loss and gain of electrons, form ions. Covalent bonding involves the sharing of electrons.
ionic bonding
Covalent Bonding
ionic bonding
electrons
Metallic bonding involves delocalised electrons, which can transfer heat and electricity across the metal. Also, graphite and benzene contains delocalised electrons.
You have described a metallic bond. This is the bond that hold a piece of copper together; or "electrolysis," "electrolytic bonding."
Covalent bonding involves two atoms sharing electrons so that they both have a full outer most shell.
Ionic bonding involves the transfer of electrons between atoms; covalent bonding involves the sharing of electrons between atoms.
Polar covalent bond
They are just referred to as "delocalized" electrons