Valence Electrons and Lewis Dot Structures

Front

What is a valence electron?

Back

An electron that is found in the outermost shell of an atom.

Front

What is the octet rule?

Back

The principle that most elements need 8 valence electrons to be stable.

Front

Which element has a full valence shell?

Back

Neon.

Front

How many valence electrons do alkali metals have?

Back

1 valence electron.

Front

What is the significance of valence electrons in chemical bonding?

Back

Valence electrons determine how an atom can bond with other atoms.

Front

What is a Lewis dot structure?

Back

A diagram that shows the valence electrons of an atom as dots around the element's symbol.

Front

How do you represent a double bond in a Lewis dot structure?

Back

By using two pairs of dots or two lines between the atoms.

Front

What is the maximum number of valence electrons an atom can have?

Back

8 valence electrons, according to the octet rule.

Front

Which group of the periodic table contains elements with full valence shells?

Back

Noble gases.

Front

What happens to an atom's stability when it has a full valence shell?

Back

The atom becomes more stable and less reactive.