Periodic Trends

Front

What is ionization energy?

Back

Ionization energy is the amount of energy required to remove an electron from an atom in its gaseous state.

Front

Which element has the highest ionization energy in Period 3?

Back

The element with the highest ionization energy in Period 3 is Argon (Ar).

Front

What trend is observed in ionization energy as you move down a group in the periodic table?

Back

Ionization energy decreases as you move down a group due to increased atomic radius and electron shielding.

Front

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

Back

Atomic radius decreases as you move across a period from left to right due to increased nuclear charge pulling electrons closer.

Front

Which group of elements has the highest ionization energies?

Back

Noble gases have the highest ionization energies due to their full valence shell.

Front

What is the relationship between atomic size and ionization energy?

Back

Generally, larger atoms have lower ionization energies because their outer electrons are farther from the nucleus.

Front

What is the smallest atom in the periodic table?

Back

The smallest atom in the periodic table is Helium (He).

Front

How does the number of protons affect ionization energy?

Back

As the number of protons increases, ionization energy generally increases because of the stronger positive charge attracting the electrons.

Front

What is the trend in electronegativity as you move across a period?

Back

Electronegativity increases as you move across a period from left to right.

Front

Which element has the lowest electronegativity?

Back

Francium (Fr) has the lowest electronegativity.