Periodic Trends and Classification

Front

What is electronegativity?

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. It is a key factor in determining how atoms interact in chemical bonds.

Front

Which element has the highest electronegativity in the periodic table?

Back

Fluorine (F) has the highest electronegativity in the periodic table.

Front

What trend is observed in atomic size as you move down a group in the periodic table?

Back

Atomic size increases as you move down a group in the periodic table due to the addition of energy levels.

Front

What is ionization energy?

Back

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

Front

How does ionization energy change across a period?

Back

Ionization energy generally increases across a period from left to right due to increasing nuclear charge.

Front

What is the least reactive alkali metal?

Back

Lithium (Li) is the least reactive alkali metal.

Front

What is the trend in reactivity of alkali metals as you move down the group?

Back

Reactivity of alkali metals increases as you move down the group.

Front

Which element has the lowest electronegativity in Period 3?

Back

Sodium (Na) has the lowest electronegativity in Period 3.

Front

What is the relationship between atomic mass and atomic size?

Back

Atomic mass does not directly determine atomic size; atomic size is more influenced by the number of energy levels.

Front

What happens to the ionization energy of elements as you move down a group?

Back

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