Periodic Properties of Elements

Flashcards covering key concepts from Chapter 4: Periodic Properties of Elements.

What is the Periodic Table developed by Mendeleev and Meyer based on?

It is based on the similarity in properties and reactivities exhibited by certain elements.

What does effective nuclear charge refer to?

It refers to the net positive charge experienced by an electron in a multi-electron atom due to the shielding effect of other electrons.

How does the atomic size trend across a period?

The atomic size generally decreases across a period.

What is ionization energy?

It is the minimum energy required to remove an electron from an isolated gaseous atom or ion.

What is the general trend for electron affinity across a period?

Electron affinity generally increases (becomes more negative) across a period.

What distinguishes metals from nonmetals in terms of thermal and electrical conductivity?

Metals are excellent conductors of heat and electricity, while nonmetals are generally poor conductors.

What is electronegativity?

Electronegativity is a measure of the ability of an atom to attract electrons in a chemical bond.

What is the trend in metallic behavior as you move down a group in the periodic table?

Metallic behavior increases as you move down a group.

What happens to atomic radius as you move down a group in the periodic table?

The atomic radius increases as you move down a group.

Which element has the highest electronegativity?

Fluorine has the highest electronegativity.