An ionic form is created because valence electrons are transferred. A covalent bond is when valence electrons are shared.
That is a covalent bond.
http://en.wikipedia.org/wiki/Covalent_bond
An ionic bond is formed when a metal gives away electrons to a nonmetal that accepts it. It forms between two ions.
ionic
Valence electrons in a metallic bond are delocalized and can move freely within the metal atoms. This gives metals their malleability and luster.
Elements have a number of spectral lines because of the number of energy levels and electrons. An electron falling from n=2 to n=1 gives one line, and if it falls from n=3 to n=1, it gives yet another line, and so on.
the atomic number of Ca or calcium is 20. That gives it an electron arangement of 2,8,8,2, It has 20 protons and 20 electrons with a full valence electron shell. Hope this helps you
Elements that are in the same group of the periodic table have the same number of electrons in their outer energy level. In the case of lithium and sodium, they each have one electron in their farthest shell.
Yes. This is due to the fact that their valence shells are adding electrons, coming closer to having an octet. The halogens in group 17/VIIA are the most reactive nonmetals because they have seven valence electrons and readily react in order gain the eighth valence electron, which gives them an octet like the nearest noble gas. It takes much less energy to gain one electron or share one electron, than it does to gain or share two or more electrons.
An anion is an ion that has a negative charge. It is formed when valence electrons are added to the outer energy level. It is giving the ion a stable electron configuration.
The metal gives its electron(s) to a nonmetal.
When an atom gives up one or more electrons to another atom, an ionic bond is formed. Atoms are the basic unit of a chemical element.
ions
Valence electrons in a metallic bond are delocalized and can move freely within the metal atoms. This gives metals their malleability and luster.
This is the loaning (by one atom) and the borrowing (by another atom) of a valence electron or electrons that creates a chemical bond. This type of bond is the ionic bond where one atom loans (or gives up) and the other borrows (or takes) an electron or electrons. In the other bond type, the covalent bond, the two atoms involved share electrons.
valency of carbon is positive as it gives it electron so it is positively charge
Ions are formed by either adding or removing an electron from elements. Ions are typically formed for stability purposes. For example, Sodium(Na), has a valence shell of 3s1, meaning that it only has one electron in its valence shell. The most stable valence configuration for an atom is one in which it has 8 electrons in its valence shell(also known as a noble gas configuration). Because of this, sodium will readily give up an electron to obtain it's noble gas configuration, which is that of Neon(Ne). These ions are typically formed from ionic bonds, where a metal and a non-metal will bond and transfer electrons. When sodium bonds to chlorine, sodium gives up an electron to chlorine to achieve a stable state. Chlorine will readily accept the electron because it only needs one more electron to fill its valence shell. Consequentially, sodium chloride(NaCl), or regular salt, will form an ionic solution when dissolved in water. Hope this helps.
Valence electrons are the electrons least tightly held by the atom and by definition are the electrons in the outermost shell of the electron and are highest in energy. They are the electrons that often contribute to an elements reactivity and in the case of Sodium, which as one valence electron in its ground state, it "gives up" its electron when it comes in contact with water.
Could be many different elements
Elements have a number of spectral lines because of the number of energy levels and electrons. An electron falling from n=2 to n=1 gives one line, and if it falls from n=3 to n=1, it gives yet another line, and so on.
the atomic number of Ca or calcium is 20. That gives it an electron arangement of 2,8,8,2, It has 20 protons and 20 electrons with a full valence electron shell. Hope this helps you