Periodic Trends

Front

What is the trend of electronegativity across a period and down a group in the periodic table?

Back

Electronegativity increases from left to right within a period and decreases from top to bottom within a group.

Front

Which element has the largest atomic radius in Group 18?

Back

Radon (Rn) has the largest atomic radius in Group 18.

Front

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

Back

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

Front

What are the characteristics of Calcium (Ca)?

Back

Calcium is a metal, has low electronegativity, and has 2 valence electrons.

Front

Which is larger: a neutral chlorine atom (Cl) or a sulfur atom (S)?

Back

The sulfur atom (S) is larger than the neutral chlorine atom (Cl).

Front

Define ionization energy.

Back

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

Front

What is the general trend of atomic radius in the periodic table?

Back

Atomic radius generally decreases from left to right across a period and increases from top to bottom within a group.

Front

What is the relationship between atomic size and ionization energy?

Back

As atomic size increases, ionization energy generally decreases.

Front

What is the significance of valence electrons in determining an element's chemical properties?

Back

Valence electrons determine how an element interacts with other elements and its reactivity.

Front

How does the electronegativity of metals compare to that of nonmetals?

Back

Metals generally have lower electronegativity compared to nonmetals.