Periodic Trends

Front

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

Back

The atomic radius increases as you move down a group because more energy levels (shells) are added.

Front

Which element has the highest electronegativity among the halogens?

Back

Fluorine (F) has the highest electronegativity among the halogens.

Front

How does ionization energy change 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.

Front

What is the relationship between electronegativity and atomic size?

Back

Electronegativity increases as atomic size decreases.

Front

Which is larger: Cl or Cl^-1?

Back

Cl^-1 is larger than Cl.

Front

Why does Francium (Fr) 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 happens to electronegativity as you move down a group in the periodic table?

Back

Electronegativity decreases as you move down a group.

Front

Define ionization energy.

Back

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

Front

What is the trend of atomic radius as you move from left to right across a period?

Back

The atomic radius decreases as you move from left to right across a period.

Front

Explain why atomic radius decreases across a period.

Back

Atomic radius decreases across a period due to increased nuclear charge, which pulls electrons closer to the nucleus.