Atomic Radius
The general trend of atomic radius across a period is by..
decreasing.
What is ionization energy?
Is the amount of energy required to remove an electron from an isolated atom or molecule.
This is the most electronegative element:
Fluorine
The trend of atomic radius down a group is by..
increasing.
The trend of ionization energy across a period is by..
increasing.
Electronegativity tends to increase in this direction across a period..
Left to right.
These elements have the largest atomic radius in the periodic table:
Alkali metals
The trend of ionization energy down a group is by..
decreasing.
Electronegativity tends to change in this way down a group..
decrease
The reason atomic radius decreases across a period is when it..
increases nuclear charge pulling electrons closer.
This element has the highest first ionization energy:
Helium
This group has no electronegativity values:
Noble gases
Which noble gas has the smallest atomic radius?
Helium
Why does ionization energy decreases down a group?
Because it increases distance from the nucleus and shielding effect.
What is the reason electronegativity increases across a period?
Because it increases nuclear charge attracting bonding electrons