Unit 4.1 Remediation

Front

What is an Element?

Back

An element is a substance that contains only one type of atom.

Front

Who discovered the Periodic Table?

Back

Dmitri Mendeleev is credited with the discovery of the Periodic Table.

Front

What does the Periodic Table represent?

Back

The Periodic Table is a chart that contains information about the elements (atoms) that make up matter.

Front

What is Average Atomic Mass?

Back

Average atomic mass is a weighted average mass of the atoms in a naturally occurring sample.

Front

Which group of elements has the highest conductivity, luster, ductility, and malleability?

Back

Alkali Metals are the highest in conductivity, luster, ductility, and malleability.

Front

What is the Atomic Mass?

Back

Atomic mass is the mass of an atom, typically measured in atomic mass units (amu).

Front

What is the Atomic Number?

Back

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

Front

What are Noble Gases?

Back

Noble gases are a group of elements in Group 18 of the Periodic Table that are characterized by their lack of reactivity.

Front

What are Halogens?

Back

Halogens are a group of elements in Group 17 of the Periodic Table known for their reactivity and formation of salts.

Front

What is the significance of Mendeleev's Periodic Table?

Back

Mendeleev's Periodic Table organized elements by increasing atomic mass and grouped them by similar properties.