Periodic Table Trends Flashcards
What is core charge and its formula
the attractive force of the nulceus of an atom on the valence electrons
core chagre= protons - inner shell electron
What is the trend of core charge
increases across periods
stays the same across group
What is the atomic radius
the measure of the size of an atom
What is the trend of the atomic radius
decreases across period
increases across group
what is electronegativty
the ability of ab atom to attract electrons in a bond towards itself (a high electronegativty means the atom has a strong electron pull
What is the trend of electronegativty
increases across period, decreases acorss group
What is ionisation energy
the energy required to remove the highest energy electron from an atom
What is the trend of ionisation energy
increases across period, decreases across groups
what is metalic characteristics
chemical properties which metalic elements have which are a result from how readily an atom loses electron
What is the trend of metalic characertistics
decreases going diagonally right to the top right, increase going diagonally left down
What is the melting point
the amount of energy required to break a bond to change solid to liquid (metal = high non metal = low)
What is the trend of melting point
decreases across period, increases across group
