elements olexes Flashcards
Proton
Positive charge moves around the nucleus
Nucleus
Center of an atom where protons And neutrons are. Brain of n atom
Neutron
Negative charged moves around the nucleus
Orbital
Readings in an atom where electrons are likely to be found
Valence electron
An electron in the outermost energy level of an atom.
Periodic law
States that she. Elements are arranged this way similarities in their properties will occur in a regular pattern
Periods
Horrozontal rows on the periodic table
Group
A column that has the same number of valence electrons
Metal
A group of element that conducts heat very well makes up most of the periodic table
Non metal
Conducts heat and electricity poorly
Semiconductor
Group on the periodic table that conducts electricity but does not insulate well
Alkali metals
First group of periodic table
Alkaline earth metals
Groupn3
Transition metals
Metals in between the noble gases and the Ålkane metals
Halogens
Most reactive nonmetal a
