Chapter 2 - Chemical Components of Cells

Front

What are valence electrons responsible for?

Back

Valence electrons are responsible for forming chemical bonds.

Front

How many covalent bonds can carbon form?

Back

Carbon can form 4 covalent bonds.

Front

What is the typical bonding capacity of nitrogen?

Back

Nitrogen typically forms 3 bonds and has a lone pair.

Front

How many covalent bonds does oxygen typically form?

Back

Oxygen typically forms 2 covalent bonds and has 2 lone pairs.

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond formed when two atoms share one or more pairs of electrons.

Front

What is the difference between single, double, and triple covalent bonds?

Back

Single bonds involve one shared pair of electrons, double bonds involve two, and triple bonds involve three shared pairs.

Front

What is electronegativity?

Back

Electronegativity is an atom's ability to attract shared electrons in a covalent bond.

Front

What causes a polar covalent bond?

Back

A polar covalent bond is caused by atoms with different electronegativities sharing electrons unequally.

Front

What is an ionic bond?

Back

An ionic bond forms between oppositely charged ions through electrostatic attraction.

Front

What are hydrogen bonds?

Back

Hydrogen bonds are weak, non-covalent interactions involving a hydrogen atom covalently bonded to an electronegative atom.