Periodic Trends

Front

Atomic Radius is...

Back

the relative size of the atom's electron cloud.

Front

Which periodic group has the smallest atomic radius?

Back

Noble Gases.

Front

As atoms of elements in group 16 are considered in order from top to bottom, the electronegativity of each successive element...

Back

decreases.

Front

The atom with the largest atomic radius in Group 18 is -

Back

Rn.

Front

What term is used to describe 'The energy required to remove an electron from gaseous atoms'?

Back

ionization energy.

Front

Define Electronegativity.

Back

The ability of an atom to attract electrons in a chemical bond.

Front

What trend is observed in electronegativity across a period?

Back

Electronegativity increases from left to right.

Front

What trend is observed in ionization energy down a group?

Back

Ionization energy decreases down a group.

Front

What is the relationship between atomic radius and ionization energy?

Back

As atomic radius increases, ionization energy decreases.

Front

Define Shielding Effect.

Back

The phenomenon where inner shell electrons reduce the effective nuclear charge felt by outer shell electrons.