Test Unit 4 Periodic Table and Trends

Front

What happens to the atomic radius when moving from the top to the bottom of a GROUP on the periodic table?

Back

Increases, because there are more electron shells.

Front

Which group of elements is usually non-reactive?

Back

Noble Gases.

Front

What are the vertical columns on the periodic table called?

Back

Groups.

Front

How are elements organized in the periodic table?

Back

By Atomic Number.

Front

What happens to ionization energy when moving from the left to the right of a PERIOD on the periodic table?

Back

Increases, because there are more protons pulling on the electrons.

Front

What is the definition of a period in the periodic table?

Back

A horizontal row of elements.

Front

What is the definition of a group in the periodic table?

Back

A vertical column of elements with similar properties.

Front

What trend is observed in electronegativity as you move across a period?

Back

Electronegativity increases.

Front

What trend is observed in atomic size as you move down a group?

Back

Atomic size increases.

Front

What are alkali metals?

Back

Elements in Group 1 of the periodic table, highly reactive.