Atoms and Elements

Flashcards covering vocabulary and key concepts related to atoms and elements, including isotopes, atomic weight, and classifications of elements.

Isotopes

Are variants of a particular chemical element which have the same number of protons but different numbers of neutrons.

Atomic Weight

Is calculated from the atomic mass and the natural abundance of each isotope.

Halogens

Nonmetals found in group 17 (7A) of the periodic table, known for being colorful and corrosive.

Alkaline Earth Metals

Elements found in group 2 (2A) of the periodic table that are lustrous and silvery.

Alkali Metals

Shiny, soft metals located in group 1 (1A) of the periodic table that react strongly with water.

Noble Gases

Gases in group 18 (8A) of the periodic table known for their lack of chemical reactivity.

Main group elements

Elements that typically possess similar chemical properties found in the same vertical columns of the periodic table.