Atoms and the Periodic Table Test Review

Front

What is the atomic number?

Back

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

Front

Which group on the periodic table contains noble gases?

Back

Group 18 contains noble gases, which are known for their lack of reactivity due to having a full outer electron shell.

Front

What is the maximum number of valence electrons an atom can have?

Back

An atom can have a maximum of 8 valence electrons, which is the stable configuration for most elements.

Front

What makes an element in Group 1 highly reactive?

Back

Elements in Group 1 have one valence electron, which they readily lose to achieve a stable electron configuration.

Front

What is a period in the periodic table?

Back

A period is a horizontal row in the periodic table, indicating elements with the same number of electron shells.

Front

What is the significance of valence electrons?

Back

Valence electrons determine an atom's chemical properties and its ability to bond with other atoms.

Front

What is the difference between atomic mass and atomic weight?

Back

Atomic mass is the mass of a single atom, while atomic weight is the average mass of an element's isotopes, weighted by their natural abundance.

Front

What does it mean for an element to be a metal?

Back

Metals are typically shiny, good conductors of heat and electricity, and are malleable and ductile.

Front

What is the role of the periodic table in chemistry?

Back

The periodic table organizes elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What are transition metals?

Back

Transition metals are elements found in Groups 3-12 of the periodic table, known for their ability to form variable oxidation states.