Unit 3 Test Review - PT & Bonding 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 do you draw a Lewis Dot Diagram for Magnesium?

Back

Magnesium has 2 valence electrons. Draw the symbol 'Mg' and place 2 dots around it, representing the valence electrons.

Front

What happens when an atom loses an electron?

Back

It becomes a positive ion.

Front

What is a positive ion?

Back

A positive ion, or cation, is an atom that has lost one or more electrons, resulting in a net positive charge.

Front

How many valence electrons does Aluminum have?

Back

Aluminum has 3 valence electrons.

Front

What are valence electrons?

Back

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

Front

Which group is known as the Alkali Metals?

Back

Group 1 of the periodic table is known as the Alkali Metals.

Front

What are Alkali Metals?

Back

Alkali Metals are highly reactive metals found in Group 1 of the periodic table, including lithium, sodium, and potassium.

Front

What role do electrons play in chemical reactions?

Back

Electrons are involved in chemical reactions, while protons and neutrons do not participate in bonding.

Front

What is a Bohr Diagram?

Back

A Bohr Diagram is a model that shows the arrangement of electrons in an atom, depicting energy levels and electron orbits.