Lewis Dot Diagrams FINAL EXAM REVIEW Fall 2024

Front

What is a Lewis Dot Diagram?

Back

A Lewis Dot Diagram is a representation of the valence electrons of an atom, depicted as dots around the element's symbol.

Front

How many valence electrons does carbon (C) have?

Back

Carbon has 4 valence electrons.

Front

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

Back

The group number indicates the number of valence electrons in the outer shell of the elements in that group.

Front

Which elements are in group 2 of the periodic table?

Back

Group 2 elements include beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).

Front

What is the correct Lewis Dot Diagram for neon (Ne)?

Back

Neon has 8 valence electrons, represented as 4 pairs of dots around the symbol Ne.

Front

Why do carbon, silicon, and tin react similarly?

Back

They are located in the same group (group 14) of the periodic table, which means they have the same number of valence electrons.

Front

What does a Lewis Dot Diagram for an element with 5 valence electrons look like?

Back

It shows 5 dots around the element's symbol, with a maximum of 2 dots on one side before pairing.

Front

How do you determine the number of valence electrons for an element?

Back

The number of valence electrons can be determined by the group number of the element in the periodic table.

Front

What is the Lewis Dot Diagram for oxygen (O)?

Back

Oxygen has 6 valence electrons, represented as 6 dots around the symbol O, typically shown as 2 pairs and 2 single dots.

Front

What is the correct Lewis Dot Diagram for sodium (Na)?

Back

Sodium has 1 valence electron, represented as a single dot next to the symbol Na.