Exploring Lewis Dot Structures of Atoms and Ions

What do Lewis Dot Structures primarily represent?

• The atomic mass

• The atomic nucleus

• The valence shell electrons

• The entire electron configuration

What is the electron configuration of oxygen?

• 1s2 2s2 2p4

• 1s2 2s2 2p6

• 1s2 2s2 2p3

• 1s2 2s2 2p2

How many valence electrons does oxygen have?

• 2

• 6

• 4

• 8

According to the octet rule, what is the maximum number of dots around an element symbol in a Lewis Dot Structure?

• 4

• 6

• 8

• 10

How are electrons typically arranged around an element symbol in a Lewis Dot Structure?

• In groups of three

• In groups of four

• In groups of two per side

• Randomly

What happens to the Lewis Dot Structure of an atom when it becomes an ion?

• It remains the same

• It gains or loses dots

• It changes color

• It becomes a different element

What do square brackets around a Lewis Dot Structure indicate?

• The structure is for a molecule

• The structure is incorrect

• The structure is for a noble gas

• The structure has been modified

What charge does an oxygen ion typically have when it gains two electrons?

• +1

• +2

• -1

• -2

How are positive ions typically depicted in Lewis Dot Structures?

• With extra dots

• With no brackets

• With empty valence shells

• With full valence shells

What does a positive three charge on an aluminum ion indicate?

• It gained one electron

• It lost one electron

• It gained three electrons

• It lost three electrons