Periodic Trends (All) Flashcards
What is the general trend moving down a group for electronegativity on the periodic table?
Decreases
More energy levels creates more electron shielding
What is the general trend moving down a group for ionization on the periodic table?
Decreases
More energy levels creates more electron shielding
What is the general trend moving down a group for electron shielding on the periodic table?
Increases
More energy levels adds more core electrons
What is the general trend moving down a group for atomic radius on the periodic table?
Increases
More energy levels expands electron cloud
What is the general trend moving down a group for electron affinity on the periodic table?
Decreases
More energy levels creates more electron shielding
What is the general trend moving down a group for nuclear charge on the periodic table?
Increases
More protons
What is the general trend moving down a group for electronegativity on the periodic table?
Increases
More energy levels
Energy required to remove an electron from an atom or ion
Ionization Energy
Measure of the ability of an atom in a chemical compound to attract electrons
Electronegativity
Size of atom and measure bond radius (length that is half the distance between the nuclei of two bonded atoms)
Atomic Radius
Energy change that occurs when a neutral atom gains an electron
Electron Affinity
Positive charge on the nucleus form the protons (Number of protons inside a nucleus)
Nuclear Charge
The size of the ion whether it is a cation or anion
Ionic Size
The inner electrons shield the outermost electron from the full attractive force of the nucleus
Electron Shielding
True or False:
Cation is smaller than parent atom
True
True or False:
Cation is bigger than parent atom
False
True or False:
Anion is bigger than parent atom
True
True or False:
Anion is smaller than parent atom
False
True or False:
Cation is a positive charged ion
True
True or False:
Anion is a positive charged ion
False
True or False:
Cation is a negative charged ion
False
True or False:
Anion is a negative charged ion
True
Who developed the electronegativity scale?
Linus Pauling
Ionization
Down:
Left to Right:
Down: Decreases
Left to Right: Increases
Electronegativity
Down:
Left to Right:
Down: Decrease
Left to Right: Increase
Electron Affinity
Down:
Left to Right:
Down: Decrease
Left to Right: Increase
Atomic Radius
Down:
Left to Right:
Down: Increase
Left to Right: Decrease
Ionic size
Down:
Left to Right:
Down: Increase
Left to Right: Decrease
Nuclear Charge
Down:
Left to Right:
Down: Increase
Left to Right: Increase
Electron Shielding
Down:
Left to Right:
Down: Increase
Left to Right: No change
What is the general trend moving across a period (to the right) for electronegativity on the periodic table? Why?
Increase
There is an increase in Nuclear charge and no change in electron shielding
What is the general trend moving across a period (to the right) for ionization on the periodic table? Why?
Increases
There is an increase in valence electrons, and an increase in nuclear charge and no change in electron shielding
What is the general trend moving across a period (to the right) for electron shielding on the periodic table? Why?
No change
No additional energy levels
What is the general trend moving across a period (to the right) for atomic radius on the periodic table? Why?
Decreases
The nuclear charge pulls in electron causing the atomic radius to decrease
What is the general trend moving across a period (to the right) for electron affinity on the periodic table? Why?
Increases
gains electrons and takes energy
What is the general trend moving across a period (to the right) for nuclear charge on the periodic table? Why?
Increases
More protons
What is the general trend moving across a period (to the right) for ionic size on the periodic table? Why?
Decreases
Metal decreases and non metals decreases
