Science 8- Intro to the Periodic Table Notebook Flashcard

Front

What is the Periodic Table?

Back

A tabular arrangement of chemical elements, organized by increasing atomic number, electron configuration, and recurring chemical properties.

Front

What is an atomic number?

Back

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

Front

What are metalloids?

Back

Elements that have properties of both metals and nonmetals, found along the zig-zag line on the Periodic Table.

Front

How many periods are in the Periodic Table?

Back

There are 7 periods in the Periodic Table.

Front

What is the maximum number of electrons in the first energy level?

Back

2 electrons.

Front

What is a valence electron?

Back

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

Front

What is the significance of the groups in the Periodic Table?

Back

Elements in the same group have similar chemical properties and the same number of valence electrons.

Front

What is a compound?

Back

A substance formed when two or more different elements chemically bond together.

Front

What is the difference between metals and nonmetals?

Back

Metals are typically shiny, good conductors of heat and electricity, while nonmetals are dull and poor conductors.

Front

What is the third energy level's maximum electron capacity?

Back

18 electrons.