Ionic Bonding
Mendeleev noticed that properties of elements usually repeated at regular intervals when the elements were arranged in order of increasing atomic mass
the periodic law state that the properties of elements are a periodic function of their atomic masses, leading to the development of the periodic table that organizes elements based on these repeating properties.
Compared with nonmetals, the number of valence electrons in METALS are generally greater
The atomic radius is equal to one-half the distance between the nuclei of identical atoms that are bonded together
In general, ionization energies increase as you move across a period from left to right, while they tend to decrease down a group due to increased electron shielding.
For each successive electron removed from an atom, the ionization energy increases. This trend can be attributed to the increased positive charge of the nucleus, which holds the remaining electrons more tightly. Furthermore, metals typically have lower ionization energies compared to nonmetals, which allows them to lose electrons more easily and participate in metallic bonding. In summary, the distinct properties of metals, such as their higher number of valence electrons, larger atomic radii, and lower ionization energies, contribute to their unique behavior in chemical reactions and bonding.
Atoms are more stable when they are combined.
To which group do fluorine and chlorine belong? Halogens
They are known for their high electronegativity and tendency to gain electrons during chemical reactions, forming negative ions.
What is the formula for the compound formed by lead(II) ions and chromate ions? PbCrO4
In the alkaline-earth group, atoms with the smallest radii have the highest ionization energies.
A measure of the ability of an atom in a chemical compound to attract electrons is called electronegativity.As the atomic number increases within a group, the electronegativity generally decreases due to the increasing distance of the valence electrons from the nucleus.
what are noble gases known as: inert
An ionic bond is a result of sharing electrons
Compared to the alkali metals, the alkaline-earth metals less reactive