PS Midterm Review

Front

What is a Bohr diagram?

Back

A Bohr diagram is a representation of an atom that shows the arrangement of electrons in energy levels around the nucleus.

Front

What is the Electron Cloud model?

Back

The Electron Cloud model is the current model of the atom that describes the probable locations of electrons as a cloud around the nucleus, rather than fixed orbits.

Front

How many valence electrons does oxygen have?

Back

Oxygen has 6 valence electrons.

Front

How many valence electrons does aluminum have?

Back

Aluminum has 3 valence electrons.

Front

What type of bond occurs between nonmetals?

Back

A covalent bond occurs between nonmetals.

Front

What is a valence electron?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds.

Front

What is the significance of valence electrons in chemical bonding?

Back

Valence electrons determine how an atom can bond with other atoms, influencing the chemical properties of the element.

Front

What is an ionic bond?

Back

An ionic bond is a type of chemical bond that occurs when electrons are transferred from one atom to another, typically between metals and nonmetals.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons and the attraction between oppositely charged ions, while covalent bonds involve the sharing of electrons between nonmetals.

Front

What is the atomic number of sulfur?

Back

The atomic number of sulfur is 16.