Periodic Table Vocab Flashcards
Metals found in group 1.
Soft and low melting points.
Alkali Metals
Metals in group 2.
Very reactive.
Not found free in nature.
Alkaline Earth Metals
The # of protons in the nucleus of 1 atom of an element.
Atomic #
1 or 2 letter-notation used to represent an atom of a specific element.
Atomic Symbol
The columns on a periodic table that arranges the elements by the # of valence electrons.
Group/Family
Found in group 17.
The most reactive non-metals.
Halogens
Elements that have properties of both metal and non-metals.
Sometimes referred to as “semiconductors”.
Metalloids
Majority of the elements.
Typically solid, shiny, malleable, and good conductors.(left side of periodic table)
Metals
Unreactive non-metals in group 18.
Noble Gases
Elements typically not shiny, usually a gas or brittle solid, not malleable, poor conductors.(left side of periodic table)
Non-Metal
A table showing the chemical elements arranged by their atomic#
Periodic Table of Elements
The horizontal rows in a periodic table that classify the elements by the # of electron shells.
Periods
Group B
The elements in groups 3-12
Transition Metals