Unit 05 Review - PTable - 3 Exploring the PT - 532

Front

What is the electron configuration of Helium?

Back

1s²

Front

What are Group 18 elements known as?

Back

Noble gases

Front

Which group do alkali metals belong to?

Back

Group 1

Front

What are elements that have properties of both metals and non-metals called?

Back

Metalloids

Front

Which of the following is not a metalloid: B, Si, Te, Sr?

Back

Sr

Front

What is the general characteristic of noble gases?

Back

They are inert and do not readily react with other elements.

Front

What is the main characteristic of alkali metals?

Back

They are highly reactive and have one electron in their outermost shell.

Front

What group do alkaline earth metals belong to?

Back

Group 2

Front

What are halogens?

Back

Group 17 elements that are highly reactive non-metals.

Front

What is the significance of the periodic table's group number?

Back

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