Question

Use the periodic table to answer the question.

The periodic table of elements shows element groups, periods, and element properties.



Based on their locations in the periodic table, which two elements are most likely to form covalent bonds with each other?

(1 point)
Responses

sodium (Na) and bromine (Br)
sodium (Na) and bromine (Br)

magnesium (Mg) and sulfur (S)
magnesium (Mg) and sulfur (S)

potassium (K) and iodine (I)
potassium (K) and iodine (I)

nitrogen (N) and oxygen (O)

Answer 1

To determine which two elements are most likely to form covalent bonds with each other based on their positions in the periodic table, we should consider the following:

- Covalent bonds typically form between nonmetals.
- Elements that are closer together in the periodic table and have similar electronegativities are more likely to form covalent bonds.

Let's analyze the options:

1. **Sodium (Na) and Bromine (Br)**: Sodium is a metal (alkali metal), and bromine is a nonmetal. While they can form an ionic bond, they are not likely to form a covalent bond.

2. **Magnesium (Mg) and Sulfur (S)**: Magnesium is also a metal (alkaline earth metal), and sulfur is a nonmetal. Similar to sodium and bromine, they are more likely to form an ionic bond rather than a covalent bond.

3. **Potassium (K) and Iodine (I)**: Potassium is a metal (alkali metal), and iodine is a nonmetal. They are likely to form an ionic bond.

4. **Nitrogen (N) and Oxygen (O)**: Both nitrogen and oxygen are nonmetals. They are in the same region of the periodic table and can form covalent bonds with each other.

Based on this analysis, the best choice for elements likely to form covalent bonds is:

**Nitrogen (N) and Oxygen (O)**.