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

Why does Francium (Fr) have a lower ionization energy than Sodium (Na)?

Back

Francium has more electron energy levels, making it easier to remove electrons from its valence energy level.

Front

Which element has a larger atomic radius: Strontium or Zinc?

Back

Strontium has a larger atomic radius than Zinc.

Front

What family of elements has the highest electronegativity?

Back

The Halogens have the highest electronegativity.

Front

What happens to atomic size as you move across a period from left to right?

Back

Atoms tend to get smaller because they have more protons, which pull the electrons closer to the nucleus.

Front

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

Back

Carbon (C) has a higher electronegativity than Arsenic.

Front

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

Back

Ionization energy generally decreases as you move down a group due to increased distance of the valence electrons from the nucleus.

Front

Define electronegativity.

Back

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

Front

Which group of elements is known as the Alkali Metals?

Back

The Alkali Metals are found in Group 1 of the periodic table.

Front

What is the relationship between atomic number and the number of protons in an atom?

Back

The atomic number of an element is equal to the number of protons in its nucleus.