Periodic Trends Flashcard Practice

Front

What is atomic radius?

Back

The 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 the following group: Li, K, Ca, Br?

Back

K (Potassium) has the largest atomic radius among these elements.

Front

What is ionization energy?

Back

Ionization energy is the energy required to remove an electron from an atom in its gaseous state. It generally increases across a period and decreases down a group.

Front

Which element has a lower ionization energy than Scandium (Sc)?

Back

Calcium (Ca) has a lower ionization energy than Scandium.

Front

What is electronegativity?

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. It generally increases across a period and decreases down a group.

Front

Which element has greater electronegativity: Cl or Al?

Back

Chlorine (Cl) has greater electronegativity than Aluminum (Al).

Front

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

Back

Atomic radius increases as you move down a group due to the addition of electron shells.

Front

What trend is observed in ionization energy as you move across a period?

Back

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

Front

Which element has a larger radius than Zinc?

Back

Strontium has a larger radius than Zinc.

Front

What is the significance of group 18 elements in the periodic table?

Back

Group 18 elements, known as noble gases, are characterized by their lack of reactivity due to having a full valence shell.