Periodic Trends

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 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.

Front

Which element has a higher electronegativity than Arsenic (As)?

Back

Carbon (C) has a higher electronegativity than Arsenic.

Front

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

Back

Atomic radius increases because you add more and more shells (energy levels).

Front

What happens to atomic radius as you move across a period in the periodic table?

Back

Atomic radius decreases because the atoms have more protons, which pull the electrons closer to the nucleus.

Front

Which atom has the largest atomic radius?

Back

Francium (Fr) has the largest atomic radius.

Front

What is the trend of ionization energy across a period?

Back

Ionization energy generally increases as you move from left to right across a period.

Front

What is the trend of electronegativity down a group?

Back

Electronegativity generally decreases as you move down a group.

Front

What is the relationship between atomic size and metallic character?

Back

As atomic size increases, metallic character increases.