Question

1 - background information

1. the attraction that forms between atoms when they share electrons is called a(n) ____ bond. the attraction formed between atoms when electrons are transferred is called a(n) ____ bond.

1. ionic bonds are usually formed between ____ and ____ (types of elements).

1. covalent bonds form between ______ elements.

Explanation:

Question 2

• For the first blank: When atoms share electrons, the bond is covalent. This is a fundamental concept in chemical bonding where electron pairs are shared between atoms (e.g., in \( \text{H}_2\text{O} \), O and H share electrons).
• For the second blank: When electrons are transferred from one atom to another, an ionic bond forms (e.g., in \( \text{NaCl} \), Na donates an electron to Cl).

Ionic bonds typically form between metals (which tend to lose electrons) and non - metals (which tend to gain electrons). Metals are electropositive and non - metals are electronegative, so electron transfer occurs easily between them.

Covalent bonds form between non - metal elements. Since non - metals have similar electronegativities, they share electrons rather than transferring them (e.g., in \( \text{O}_2 \) or \( \text{CH}_4 \)).

Answer:

First blank: covalent bond; Second blank: ionic bond

Question 3