Which molecular model uses perfectly spherical atoms connected by clearly defined bonds?

Molecules are like groups of atoms hanging out close to each other because that's where their energy is ___

In reality, the only thing connecting two atoms together in a chemical bond is a bunch of ___

In a covalent bond, where do the bonding electrons spend most of their time?

If a scientific model were a perfect representation of reality, it would ___

Early scientists, including Isaac Newton, thought that atoms combined because they were ___

In the 19th century, who discovered positive and negative charges associated with chemicals in certain situations?

In 1916, which American chemist described a covalent bond as two atoms sharing electrons?

A 2D model that represents covalent bonds as lines and unbonded electrons as dots is called ___

In Lewis structures, bonds are formed by pairs of valence electrons called ___

In Lewis structures, pairs of electrons that are attached to only one atom are known as ___

Sodium has one valence electron and chlorine has ___

The Lewis structure for sodium chloride doesn't include a line because ___

For water, each hydrogen atom has one valence electron, and oxygen has ___

In Lewis's model each bond requires ___

How many valence electrons does carbon have?

When drawing the Lewis structure for carbon dioxide, all three of the atoms need ___

A bond in which two pairs of electrons are shared by a pair of atoms is called a ___

Molecular nitrogen is really hard to break up because it has ___

Quantum mechanics basically involves the idea that some things, like light and electrons, are both ___

Who developed a quantum mechanical model of chemical bonds and won a Nobel Prize for it in 1954?