2022 CHEM FINAL REVIEW Bohr Models and Lewis Dot Diagrams

Front

What is a Bohr Model?

Back

A simplified representation of an atom.

Front

What is a Lewis Dot Structure?

Back

Only shows the element symbol and its outer most electron shell.

Front

What is the goal of the Lewis Dot Structure?

Back

To show the element's valence electrons & bonding capabilities.

Front

What does the atomic number represent?

Back

The number of protons in an atom's nucleus.

Front

What is a valence electron?

Back

An electron in the outermost shell of an atom that can participate in chemical bonding.

Front

How do you determine the number of valence electrons for an element?

Back

By looking at its group number in the periodic table.

Front

What is the significance of the periodic table's vertical columns?

Back

They represent groups of elements with similar chemical properties.

Front

What is the significance of the periodic table's horizontal rows?

Back

They represent periods, indicating the number of electron shells in the elements.

Front

What is an ion?

Back

An atom or molecule that has gained or lost one or more electrons, resulting in a net charge.

Front

What is the difference between an anion and a cation?

Back

An anion is a negatively charged ion, while a cation is a positively charged ion.