Periodic Trends

Front

What is the atomic radius?

Back

The atomic radius is the distance from the nucleus of an atom to the outermost shell of electrons.

Front

Which group in the periodic table has the largest atomic radius?

Back

The alkali metals group (Group 1) has the largest atomic radius.

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 energy levels.

Front

What is electronegativity?

Back

Electronegativity is a measure of an atom's ability to attract and hold onto electrons.

Front

Which group in the periodic table has the smallest atomic radius?

Back

The noble gases group (Group 18) has the smallest atomic radius.

Front

How does atomic radius change across a period from left to right?

Back

Atomic radius decreases from left to right across a period due to increasing nuclear charge.

Front

What is the relationship between atomic radius and ionization energy?

Back

Generally, as atomic radius decreases, ionization energy increases because electrons are held more tightly by the nucleus.

Front

What are the alkali metals?

Back

Alkali metals are the elements in Group 1 of the periodic table, known for being highly reactive and having one electron in their outermost shell.

Front

What are halogens?

Back

Halogens are the elements in Group 17 of the periodic table, known for being very reactive nonmetals.

Front

What is the trend in electronegativity as you move down a group?

Back

Electronegativity generally decreases as you move down a group due to increased distance between the nucleus and the valence electrons.