you need two atoms depending how many electrons they want to get or get rid of like water hydrogen wants to give away one electron and oxygen wants to get two electrons that is how it becomes H2O
A nonpolar covalent bond forms when two atoms share electrons equally because they have the same electronegativity. In this bond, there is no attraction difference between the two atoms, and they pull on the shared electrons with equal strength.
Ionic bonds form during chemical changes when atoms pull electrons away from other atoms. The atoms that lose electrons form ions that have fewer electrons than protons. So, an ion would be produced by an atom or a group of atoms that gained or lost one or more of its electrons.
Atoms become electrically charge when they reacting to one another. The two groups of charged atoms are cations (positively charged) and anions (negatively charged), and all together these types of atoms are called ions. The ability to become electrically charge depends on their electronegativity values and ionization energies. Electronegativity refers to an atom's "pull" on electrons, meaning that the more electronegative an atom is the harder it will "pull" on electrons from other atoms. The more electronegative atoms (typically the anions) reside on the far right side of the periodic table. Ionization energy refers to the energy needed to pluck an electron from an atom. Atoms with the lower energy typically have lower electronegativity values, making them cations (which are to the left of the periodic table).
... fact that some electrons of the atoms forming a covalent bond can occupy a lower energy orbital, created by sharing the thus bonded electrons between or among the influence of two or more nuclei of the bonded atoms, than the thus-shared electrons can occupy in the individual atoms from which they came into the covalent bond.
No, a polar bond does not have an equal pull. In a polar bond, one atom has a higher electronegativity than the other, leading to an uneven distribution of electrons and a partial negative and positive charge on the atoms. This results in a dipole moment and unequal sharing of electrons in the bond.
Electronegativity
A nonpolar covalent bond forms when two atoms share electrons equally because they have the same electronegativity. In this bond, there is no attraction difference between the two atoms, and they pull on the shared electrons with equal strength.
In a nonpolar covalent bond, both atoms have similar electronegativities, so they exert an equal pull on the shared electrons. This results in a symmetrical distribution of electron density between the atoms.
electrons pair pull atoms apart
Electronegativity increases acidity in molecules because it affects the ability of an atom to attract and hold onto electrons. In more electronegative atoms, such as oxygen or fluorine, the atom can more easily pull electrons away from hydrogen atoms in a molecule, making it easier for the molecule to release a proton and become acidic.
Ionic bonds form during chemical changes when atoms pull electrons away from other atoms. The atoms that lose electrons form ions that have fewer electrons than protons. So, an ion would be produced by an atom or a group of atoms that gained or lost one or more of its electrons.
Oppositely charged atoms will stick together when forming an ionic bond which is a bond between a metal and nonmetal which makes them good conductors. The positive charge of a nonmetal will use its force to pull in the electrons of other atoms (metals) which is called electronegativity,"The ability to be able to pull in new electrons." hope i helped you:)
Hydrogen fluoride is a covalent compound because it is formed by the sharing of electrons between the hydrogen and fluorine atoms. In an ionic compound, electrons are transferred from one atom to another to form ions.
Atoms of some elements pull more strongly on shared electrons than do atoms of other elements. As a result, the electrons are pulled more toward one atom, causing the bonded atoms to have slight electrical charges. These charges are not as strong as the charges on ions, however.
The pull on electrons in the Periodic Table increases from left to right across a period due to increasing effective nuclear charge. From top to bottom within a group, there is less pull on the electrons as electrons are added to higher energy levels further away from the nucleus.
Polar bonds exist because certain atoms have a greater pull on the electrons in a bond than other atoms. The ability of an atom to attract electrons in a covalent bond is called "electronegativity". Atoms with a greater electronegativity will have a greater pull on the electrons in a bond than atoms with lower electronegativities. What this means for an electron is that it is not "shared" all that fairly. It will spend more time on the more electronegative atom than it will on the less electronegative atom (to a degree proportional to the difference in their electronegativity).
Atoms with low electronegativity like lithium have a weak attractive force for electrons because they have less ability to attract and hold onto electrons due to their smaller nuclear charge. This results in a weaker pull on electrons towards the nucleus compared to atoms with higher electronegativity.