Periodic Trends

Front

What is electronegativity?

Back

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

Front

Which halogen has the greatest electronegativity?

Back

Chlorine (Cl) has the greatest electronegativity among the halogens.

Front

What is ionization energy?

Back

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

Front

Which group of elements has the lowest ionization energies?

Back

Alkali Metals (Group 1) have the lowest ionization energies.

Front

What is an anion?

Back

An anion is a negatively-charged ion that forms when an atom gains electrons.

Front

What is a cation?

Back

A cation is a positively-charged ion that forms when an atom loses electrons.

Front

What trend is observed in electronegativity across a period?

Back

Electronegativity increases across a period from left to right.

Front

What trend is observed in electronegativity down a group?

Back

Electronegativity decreases down a group.

Front

What is the relationship between ionization energy and electronegativity?

Back

Generally, elements with high ionization energy also have high electronegativity.

Front

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

Back

Ionization energy decreases as you move down a group.