Periodic Trends

Front

What is the trend in atomic radius as you move down a group in the periodic table?

Back

Atomic radius increases as you move down a group because additional electron shells (energy levels) are added.

Front

Which element has the largest atomic radius?

Back

Francium (Fr) has the largest atomic radius.

Front

Which halogen has the smallest atomic radius?

Back

Fluorine (F) has the smallest atomic radius among the halogens.

Front

What is ionization energy?

Back

Ionization energy is the energy required to remove an electron from an atom.

Front

Why does francium have the lowest ionization energy in Group 1?

Back

Francium has the lowest ionization energy because its one valence electron is far from the nucleus, requiring little energy to remove it.

Front

What is the trend in ionization energy as you move across a period from left to right?

Back

Ionization energy generally increases as you move from left to right across a period due to increasing nuclear charge.

Front

Which noble gas has the largest atomic radius?

Back

Radon (Rn) has the largest atomic radius among the noble gases.

Front

What is the relationship between atomic radius and electronegativity?

Back

As atomic radius increases, electronegativity generally decreases because the distance between the nucleus and the valence electrons increases.

Front

How does the atomic radius of elements in Group 18 compare to those in Group 1?

Back

Elements in Group 18 (noble gases) generally have smaller atomic radii compared to elements in Group 1 (alkali metals) due to their filled electron shells.

Front

What happens to atomic radius as you move from top to bottom in a group?

Back

Atomic radius increases as you move from top to bottom in a group due to the addition of electron shells.