Bohr and Lewis Model

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 many electrons can fit in the first energy level of an atom?

Back

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

Front

What are ions?

Back

Ions are atoms that have gained or lost electrons, resulting in a net positive or negative charge.

Front

What is a Lewis Dot Structure?

Back

A Lewis Dot Structure is a diagram that shows the valence electrons of an atom as dots around the element's symbol.

Front

How many valence electrons does Chlorine have?

Back

Chlorine has 7 valence electrons.

Front

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

Back

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

Front

What is the significance of the Bohr model?

Back

The Bohr model describes the arrangement of electrons in an atom and how they occupy different energy levels.

Front

What is the difference between isotopes and ions?

Back

Isotopes are atoms of the same element with different numbers of neutrons, while ions are atoms that have lost or gained electrons.

Front

What does the term 'valence electrons' refer to?

Back

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

Front

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

Back

The number of protons in an atom is equal to the atomic number of the element.