Periodic Table, Bohr Models and Lewis Dot Diagrams

Front

What is the Periodic Table?

Back

A tabular arrangement of chemical elements, organized by increasing atomic number, which shows the relationships between them.

Front

What does the atomic number represent?

Back

The number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is a Bohr Model?

Back

A diagram that represents an atom with a central nucleus surrounded by electrons in specific energy levels or shells.

Front

What are Lewis Dot Diagrams used for?

Back

To represent the valence electrons of an atom and how they bond with other atoms.

Front

How many valence electrons does Oxygen (O) have?

Back

6 valence electrons.

Front

What is the significance of an element's group in the Periodic Table?

Back

It indicates the number of valence electrons in the outer shell of the elements in that group.

Front

How many electrons are in the outer shell of Chlorine (Cl)?

Back

7 electrons.

Front

What is the electron configuration of Sodium (Na)?

Back

1s² 2s² 2p⁶ 3s¹.

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 a cation and an anion?

Back

A cation is a positively charged ion (lost electrons), while an anion is a negatively charged ion (gained electrons).