Bohr Model and Lewis Dot Structure Flashcard (Q1W8)

Front

What is the mass number of an atom?

Back

The mass number is the total number of protons and neutrons in the nucleus of an atom.

Front

What are valence electrons?

Back

Valence electrons are the electrons located in the outermost shell of an atom, which are involved in chemical bonding.

Front

What element is represented in a Bohr Model with 3 protons and 4 neutrons?

Back

Lithium (Li) is represented in a Bohr Model with 3 protons and 4 neutrons.

Front

What does the octet rule state?

Back

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a full outer shell of 8 electrons.

Front

What is a Lewis Dot Structure?

Back

A Lewis Dot Structure is a diagram that shows the bonding between atoms of a molecule and the lone pairs of electrons that may exist.

Front

How many valence electrons does oxygen have?

Back

Oxygen has 6 valence electrons.

Front

What is the significance of the first energy shell?

Back

The first energy shell can hold a maximum of 2 electrons.

Front

What is the maximum number of electrons in the second energy shell?

Back

The second energy shell can hold a maximum of 8 electrons.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

How do you determine the number of neutrons in an atom?

Back

The number of neutrons can be determined by subtracting the atomic number from the mass number.