Biology Chem Basics Part 2

How many valence electrons does oxygen have (Group 16)?

The weak forces of attraction between water molecules are called

Ions that are needed for the function of our nerves and muscles in the body are called

Carbon is on group 14 of the periodic table. How many valence electrons does it have?

In an H2O molecule, the hydrogen end has a stronger attraction for the shared electrons.

The weak attractive forces between water molecules and each strand in a DNA molecule are

A ___ covalent bond shares electrons unequally. This results in molecules having____ regions.

An atom will form bonds so that it is surrounded by 8 valence electrons is called the

Which of these would you expect to dissolve in vegetable oil?

In a ___________ covalent bond, electrons are shared equally.

When we separated the ink using water and a coffee filter, the most polar ink color was __

There are ______ lone pairs of electrons in a water molecule.

When atoms share, gain, or lose electrons to complete unfilled shells, they become ___.

Evidence that blue is the most polar color is that

Alcohol is a polar substance, and therefore we can predict that it _________ in water.

Which type of bond involves electrons being completely transferred from one atom to another?

All noble gases have ___________ shells, which makes them very ___________.

The type of bond in which electrons are shared between atoms is called

The type of bond between oxygen and hydrogen WITHIN a water molecule is

An ionic bond is characterized by _________________ holding atoms together.