Ionic vs Covalent Bonds

The smallest unit of an element is an ____.

Atoms are electrically neutral because they have _____ numbers of both positively charged protons and negatively charged electrons.

An atom can become a charged particle called an ___ if it gains or loses electrons. 

If an atom gains electrons, it acquires more negative charge. As a result, it becomes a _____________ charged ion.

If an atom loses electrons, it loses some of its negative charge and becomes a ________ charged ion.

Ionic bonds create ions out of electrically neutral atoms by the __________ of one or more valence electrons from one atom to another. 

Which two elements form to create table salt?

Covalent bonds occur when atoms ________ pairs of electrons.

In __________ bonds, one or more pairs of electrons are shared between atoms.

In _____ bonds, one or more electrons are transferred from one atom to another.