Covalent & Ionic Bonds!

Explanation
A one-atom ion is called a monatomic ion because it consists of only one atom that has gained or lost electrons, resulting in a positive or negative charge. Monatomic ions are formed by elements from the periodic table and are classified as cations (positively charged) or anions (negatively charged). In this case, since the question asks for the name of a one-atom ion, the correct answer is monatomic ion.

Explanation
The name for the ion with fewer oxygen atoms ends with "ite". This naming convention is used for ions that have one less oxygen atom than the "-ate" form. For example, sulfate (SO4^2-) has one less oxygen atom than sulfite (SO3^2-). Therefore, the correct answer is "ite".

Explanation
A chemical bond refers to the force that holds two atoms together. It is the interaction between the electrons of the atoms that creates this bond. Ionic bonds are a type of chemical bond that forms when one atom transfers electrons to another atom, resulting in the formation of ions. Valence level refers to the outermost energy level of an atom, which determines its reactivity. Octet refers to the stable arrangement of eight electrons in the outermost energy level of an atom. Therefore, the correct answer is chemical bond, as it encompasses the general concept of the force that holds atoms together.

Explanation
Noble gases are the family of elements that have very little tendency to react. This is because noble gases have a full outer electron shell, making them stable and unreactive. They rarely form compounds with other elements and are often referred to as inert gases. Their lack of reactivity is due to the fact that they already have a stable electron configuration, so they do not need to gain, lose, or share electrons with other elements to achieve stability.

Explanation
The overall charge of a formula unit for an ionic compound is always zero because ionic compounds are formed by the transfer of electrons between ions. In an ionic compound, the positive charge of the cations is balanced by the negative charge of the anions to achieve overall neutrality. This means that the sum of the positive charges must equal the sum of the negative charges, resulting in a net charge of zero for the formula unit.

Explanation
Ionic bonds generally occur between a metal and a nonmetal because metals tend to lose electrons and form positive ions, while nonmetals tend to gain electrons and form negative ions. The attraction between these opposite charges results in the formation of an ionic bond. Metals have low electronegativity and easily give up electrons, while nonmetals have high electronegativity and readily accept electrons. This large difference in electronegativity allows for the transfer of electrons from the metal to the nonmetal, creating ions with opposite charges that are attracted to each other.

Explanation
An ionic bond is a force that holds together atoms that are oppositely charged. In an ionic bond, one atom donates electrons to another atom, resulting in the formation of ions. The positively charged ion attracts the negatively charged ion, creating a strong electrostatic force that holds the atoms together. This force is responsible for the stability and strength of ionic compounds.

Explanation
Ionic compounds form through the transfer of electrons from one element to another, resulting in the formation of positive and negative ions. This transfer of electrons leads to the formation of a strong electrostatic attraction between the oppositely charged ions, which is known as an ionic bond. This bond is responsible for holding the compound together. The formation of this bond releases energy, making the overall energy of the compound lower than that of the separate elements. Therefore, the given statement is false.

Explanation
In a chemical formula, a subscript is used to represent the number of ions of a given element. It is a small number written below and to the right of the element symbol. Subscripts indicate the ratio of atoms or ions in a compound and help to balance the equation. Therefore, the correct answer is "subscript."

Explanation
When a stable ionic compound is formed from ions, it releases energy in the form of heat. This is because the process of forming an ionic bond involves the attraction between positively and negatively charged ions, which releases energy. Therefore, the formation of a stable ionic compound from ions is exothermic.