Unit 4 Periodicity Study Guide

Front

What is the Lewis Dot Structure?

Back

A diagram that shows the bonding between atoms of a molecule and the lone pairs of electrons that may exist in the molecule.

Front

Who is known for arranging the first periodic table?

Back

Dmitri Mendeleev.

Front

What is an anion?

Back

A negatively-charged ion that forms when an atom gains electrons.

Front

Where is Phosphorus located in the periodic table?

Back

Group 15; Period 3.

Front

How did Moseley organize the periodic table?

Back

By atomic number.

Front

What is a cation?

Back

A positively-charged ion that forms when an atom loses electrons.

Front

What is the significance of atomic number in the periodic table?

Back

It determines the position of an element in the periodic table and its chemical properties.

Front

What are periods in the periodic table?

Back

Horizontal rows in the periodic table that indicate the number of electron shells in the elements.

Front

What are groups in the periodic table?

Back

Vertical columns in the periodic table that indicate elements with similar chemical properties.

Front

What is the periodic law?

Back

The properties of elements are a periodic function of their atomic numbers.