Bonding Chemistry Flashcard

Front

What is a covalent bond?

Back

A covalent bond is a type of chemical bond where two atoms share pairs of electrons.

Front

Do covalent bonds actually 'share' electrons?

Back

False. Covalent bonds involve the sharing of electrons, but the electrons are not shared equally in all cases.

Front

How many electrons do atoms need to be stable?

Back

Atoms typically need 8 electrons in their outer shell to be stable, known as the octet rule.

Front

What does VSEPR theory stand for?

Back

VSEPR stands for Valence Shell Electron Pair Repulsion theory.

Front

What does VSEPR theory predict?

Back

VSEPR theory is used to predict the molecular shape of a molecule based on the repulsion between electron pairs.

Front

What is the shape of CCl4?

Back

The shape of CCl4 (carbon tetrachloride) is tetrahedral.

Front

What is a dot diagram?

Back

A dot diagram, or Lewis dot structure, represents the valence electrons of an atom as dots around the element's symbol.

Front

Which element has the dot diagram that represents 6 valence electrons?

Back

The element with 6 valence electrons is oxygen (O).

Front

What is electronegativity?

Back

Electronegativity is a measure of an atom's ability to attract and hold onto electrons.

Front

What is the difference between polar and nonpolar covalent bonds?

Back

Polar covalent bonds have unequal sharing of electrons, while nonpolar covalent bonds have equal sharing.