1.
What is an ionic bond?
Correct Answer
A. Bond in which one atom gives up an electron to another
Explanation
An ionic bond is a type of chemical bond where one atom transfers an electron to another atom. This transfer of electrons leads to the formation of positively charged ions (cations) and negatively charged ions (anions), which are then attracted to each other due to their opposite charges. This attraction between the ions creates a strong bond between the atoms.
2.
What is a covalent bond?
Correct Answer
A. A chemical bond that results from the sharing of valence electrons.
Explanation
A covalent bond is a type of chemical bond that occurs when two atoms share their valence electrons. This sharing of electrons allows both atoms to achieve a more stable electron configuration. In a covalent bond, the electrons are not transferred from one atom to another, but rather shared between the atoms involved. This type of bond is typically formed between nonmetal atoms.
3.
Which bond forms two ions?
Correct Answer
B. Ionic Bond
Explanation
Ionic bonds form between two ions, one positively charged (cation) and one negatively charged (anion). This type of bond occurs when one atom transfers one or more electrons to another atom, resulting in the formation of oppositely charged ions. The attraction between these ions creates a strong bond. Therefore, the correct answer is Ionic Bond.
4.
Which bond gives/takes electrons in order to become noble?
Correct Answer
B. Ionic Bond
Explanation
Ionic bonds involve the transfer of electrons from one atom to another. In this type of bond, one atom loses electrons (gives) and becomes positively charged, while the other atom gains electrons (takes) and becomes negatively charged. By transferring electrons, both atoms achieve a stable electron configuration similar to that of a noble gas, making them noble. Therefore, the correct answer is Ionic Bond.
5.
Which bond shares electrons in order to become noble?
Correct Answer
A. Covalent Bond
Explanation
A covalent bond is formed when two atoms share electrons in order to achieve a stable electron configuration similar to that of noble gases. In this type of bond, the atoms involved have similar electronegativity, meaning they have similar abilities to attract electrons. By sharing electrons, both atoms can fill their outermost energy levels and become more stable, similar to noble gases. Ionic bonds involve the transfer of electrons from one atom to another, while metallic bonds involve a "sea" of delocalized electrons shared among a lattice of metal atoms.
6.
Salt is a good example of a(n) _______ bond.
Correct Answer
B. Ionic Bond
Explanation
Salt is a good example of an ionic bond because it is formed by the transfer of electrons between a metal (sodium) and a non-metal (chlorine). In an ionic bond, the metal atom loses electrons to become a positively charged ion, while the non-metal atom gains electrons to become a negatively charged ion. These oppositely charged ions are then attracted to each other, forming a strong bond. Salt, or sodium chloride (NaCl), is a compound made up of positively charged sodium ions and negatively charged chloride ions held together by the attraction between these opposite charges.
7.
Which of the following has the strongest bond?
Correct Answer
A. Covalent Bond
Explanation
Covalent bonds have the strongest bond compared to ionic bonds. In a covalent bond, two atoms share electrons, creating a strong bond between them. The shared electrons are attracted to both nuclei, resulting in a stable molecule. On the other hand, in an ionic bond, one atom donates electrons to another atom, creating oppositely charged ions that attract each other. While ionic bonds can be strong, they are generally weaker than covalent bonds due to the complete transfer of electrons rather than sharing.
8.
Water is an example of a(n) _______ bond.
Correct Answer
A. Covalent Bond
Explanation
Water is an example of a covalent bond because it is formed by the sharing of electrons between the oxygen and hydrogen atoms. In a covalent bond, atoms share electrons in order to achieve a stable electron configuration. In the case of water, the oxygen atom shares electrons with two hydrogen atoms, resulting in the formation of a covalent bond. This sharing of electrons allows water molecules to have a bent shape and gives water its unique properties such as high boiling point, surface tension, and ability to dissolve many substances.
9.
Which bond is made of metals and nonmetals?
Correct Answer
B. Ionic Bond
Explanation
Ionic bonds are formed between metals and nonmetals. In this type of bond, one atom donates electrons to another atom, resulting in the formation of positive and negative ions. The attraction between these oppositely charged ions creates a strong bond. Therefore, the correct answer is Ionic Bond.
10.
Which bond is made up of only nonmetals?
Correct Answer
A. Covalent Bond
Explanation
A covalent bond is made up of only nonmetals because it involves the sharing of electrons between two nonmetal atoms. This type of bond occurs when two or more nonmetal atoms have similar electronegativities and can share electrons to achieve a stable electron configuration. In a covalent bond, the nonmetal atoms are able to fill their outermost electron shells by sharing electrons, resulting in a stable molecule.