Two electronegative atoms combine to form

Options

A. ionic bond
B. covalent bond
C. coordinate bond
D. can't be predicted

Explanation

To answer the question "Two electronegative atoms combine to form," we can follow these steps:

### Step 1: Understand Electronegativity
Electronegativity is the tendency of an atom to attract electrons in a bond. When two electronegative atoms come together, they both have a strong pull on electrons.

**Hint:** Remember that electronegativity is a measure of how strongly an atom can attract electrons.

### Step 2: Consider Ionic Bond Formation
An ionic bond typically forms between atoms with a significant difference in electronegativity. This means one atom donates an electron to another, resulting in the formation of ions. However, if both atoms are highly electronegative, they are unlikely to form an ionic bond.

**Hint:** Ionic bonds require a large difference in electronegativity between the two atoms.

### Step 3: Analyze Covalent Bond Formation
Covalent bonds form when two atoms share electrons. If both atoms are electronegative, they will tend to share their electrons rather than transfer them. For example, if we consider two fluorine atoms, they will share their electrons to achieve a full outer shell, forming a covalent bond.

**Hint:** Covalent bonds involve the sharing of electrons between two atoms.

### Step 4: Evaluate Coordinate Bond Formation
A coordinate bond (or dative bond) occurs when one atom donates both of the electrons to be shared with another atom. This typically happens when one atom has a lone pair of electrons and the other atom has an empty orbital. However, in the case of two electronegative atoms, this type of bond is less common.

**Hint:** Coordinate bonds involve one atom donating both electrons to the bond.

### Conclusion
Since both atoms in this scenario are electronegative, they will primarily form a covalent bond by sharing electrons. Therefore, the answer to the question is that two electronegative atoms combine to form a **covalent bond**.

**Final Answer:** Covalent bond