ASSESSMENT Trends in the Periodic Table

Front

What is atomic radius?

Back

Atomic radius is the distance from the nucleus of an atom to the outermost shell of electrons. It generally increases down a group and decreases across a period.

Front

Which element has the largest atomic radius in Group 1?

Back

Rubidium (Rb) has the largest atomic radius in Group 1.

Front

What trend does atomic radius follow in the periodic table?

Back

Atomic radius increases down a group and decreases from left to right across a period.

Front

What is ionization energy?

Back

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

Front

Which element has the smallest atomic radius among the halogens?

Back

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

Front

What is the relationship between atomic radius and ionization energy?

Back

As atomic radius increases, ionization energy generally decreases because the outer electrons are further from the nucleus and experience less attraction.

Front

What is electronegativity?

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.

Front

Which group of elements has the highest ionization energy?

Back

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

Front

What is the trend of ionization energy across a period?

Back

Ionization energy generally increases across a period from left to right.

Front

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

Back

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