representative group
shiny (luster), ductile, malleable, conductors
alkali metals
transition metals
mercury
period
Iodine
ionization energy
noble gases
smaller
Mendeleev
increases as you move toward the middle
lithium
bromine
Moseley
francium
actinides
metalloids
Periodic Law
shielding effect
fluorine
increases
semiconductors
dull, non-conductors, insulators, brittle
increases
The most reactive halogen
What is the trend for melting and boiling point on the periodic table?
The s and p blocks make up which group of elements on the periodic table?
This group of metals are highly reactive.
States that the chemical and physical properties of elements repeat in a periodic way when the elements are arranged by increasing atomic number.
The scientists credited with organizing the first periodic table by atomic mass.
The lessening of attractive electrostatic charge difference between nuclear protons and valence electrons by partially or fully filled inner shells.
Metalloids are most commonly used as _____________ in LEDs and computers.
The least electronegative element.
The energy required to remove one electron from a neutral atom of an element.
This group of elements are synthetic and radioactive.
What is the trend of metallic properties going left to right across the periodic table?
List the characteristics of metals.
Organized the periodic table according to atomic number.
Elements lying along the zigzag line on the periodic table.
List the characteristics of non-metals
A horizontal row on the periodic table.
Cations tend to lose electrons. How do they compare in size to their parent atom?
The group of elements on the periodic table that require the most ionization energy.
This group of elements can have multiple charges when bonding with non-metals.
Which halogen has the least attraction for electrons? F Cl Br I
The only metal that is a liquid at room temperature.
Describe the trend of reactivity as you move down a group.
The least reactive alkali metal.
Which halogen is a liquid at room temperature?
