Unit 6 Practice Test: The Periodic Table

Front

As you move down the periodic table, atoms get bigger because ____________.

Back

The atoms have more energy levels.

Front

Group 2 Alkaline Earth elements are ____________ than the alkali metals.

Back

less reactive than the alkali metals.

Front

Which element is a metalloid?

Back

silicon.

Front

The atoms along the stair step or zig-zag line are called ____________.

Back

metalloids.

Front

As you move across the periodic table, atoms tend to get smaller because ____________.

Back

the atoms have more protons.

Front

What is the periodic table?

Back

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

Front

What are metalloids?

Back

Elements that have properties of both metals and nonmetals.

Front

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

Back

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

Front

What are alkali metals?

Back

Group 1 elements that are highly reactive and have one electron in their outermost shell.

Front

What is the general trend in reactivity for Group 1 elements?

Back

Reactivity increases as you move down the group.