Periodic Table and Trends

Front

What are Noble Gases?

Back

Noble gases are a group of chemical elements that are odorless, colorless, monatomic gases with very low chemical reactivity. They include helium, neon, argon, krypton, xenon, and radon.

Front

What is ionization energy?

Back

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

Front

How does electron affinity change as you move down a group in the periodic table?

Back

Electron affinity decreases as you move down a group in the periodic table.

Front

How does electron affinity change as you move left to right across a period in the periodic table?

Back

Electron affinity increases as you move left to right across a period in the periodic table.

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 the highest electronegativity?

Back

Fluorine has the highest electronegativity of all elements.

Front

What is the trend of atomic radius as you move down a group in the periodic table?

Back

The atomic radius increases as you move down a group in the periodic table.

Front

What is the trend of atomic radius as you move left to right across a period?

Back

The atomic radius decreases as you move left to right across a period in the periodic table.

Front

What is the relationship between ionization energy and atomic size?

Back

Generally, as atomic size increases, ionization energy decreases because the outer electrons are further from the nucleus and are less tightly held.

Front

What is the significance of the octet rule in relation to electron affinity?

Back

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons, which influences their electron affinity.