The ionic compound containing the polyatomic ion NaNO₃ is sodium nitrate. It consists of sodium ions (Na⁺) and nitrate ions (NO₃⁻). In this compound, each sodium ion pairs with one nitrate ion, resulting in a neutral compound that is commonly used as a fertilizer and in food preservation.
ioic bonding
Generally ioic compounds contain metals and non metals. However the compound NH4Cl is ionic, and contains NH4+ and Cl- ,and all of the elements are non-metals.
SO2 is not ionic because it is a covalent compound. The bonding in SO2 involves sharing of electrons between sulfur and oxygen atoms, resulting in a covalent bond. In an ionic compound, electrons are transferred from one atom to another, leading to formation of positive and negative ions.
Electrons in silver participate in bonding by sharing with electrons from other elements. This sharing creates a balanced electrostatic interaction that holds the atoms together in a stable arrangement. The electrons help to establish the properties and behavior of the resulting silver compound.
Beryllium is in the 2d period of the modern periodic table. Its electron config. is [He] 2s2 and forms the Be2+ ion by losing two elctrons and in this instance can be said to disobey the octet. In some compounds such as the hydride it also disobeys the octet rule. But in many others it does obey the octet rule! For example the difluoride, BeF2, is essentially covalent with four coordinate Be centers linked by flourine bridges.