wk17 Flashcard Covalent bonds

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.

Front

How many valence electrons does Carbon (C) have?

Back

Carbon has 4 valence electrons.

Front

What is the molecular formula for methane?

Back

The molecular formula for methane is CH₄.

Front

What is the significance of valence electrons in bonding?

Back

Valence electrons determine how an atom can bond with other atoms to achieve stability.

Front

What is a Lewis dot structure?

Back

A Lewis dot structure is a diagram that shows the bonding between atoms of a molecule and the lone pairs of electrons that may exist.

Front

How many double bonds are present in CCl₄?

Back

CCl₄ has 0 double bonds.

Front

What is the valence electron count for Fluorine (F)?

Back

Fluorine has 7 valence electrons.

Front

Why do atoms form covalent bonds?

Back

Atoms form covalent bonds to achieve a full outer shell of electrons, leading to greater stability.

Front

What is the correct Lewis dot structure for the molecule fluorine (F₂)?

Back

The correct Lewis dot structure for F₂ shows two fluorine atoms sharing a pair of electrons.

Front

What is the molecular geometry of CH₂Cl₂?

Back

The molecular geometry of CH₂Cl₂ is tetrahedral.