Properties of elements flashcard

Front

What do the dots on dot diagrams represent?

Back

The number of valence electrons on each atom in the element.

Front

Why are elements in group 17 reactive?

Back

They all need one electron to fill their outer shell.

Front

What is true about the electron configuration of all atoms in the 18th column of the periodic table?

Back

Their outer electron shell is full.

Front

Which element is the best conductor of electricity?

Back

Lithium.

Front

What is true about valence electrons and the periodic table?

Back

Elements with the most valence electrons are in group 18.

Front

What are valence electrons?

Back

Electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

What is the significance of a full outer shell in elements?

Back

Elements with a full outer shell are generally stable and less reactive.

Front

What is the periodic table?

Back

A tabular arrangement of elements organized by increasing atomic number and grouped by similar properties.

Front

What are the main groups of the periodic table?

Back

Alkali metals, alkaline earth metals, transition metals, halogens, and noble gases.

Front

What is the difference between metals and nonmetals?

Back

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