PERIODICITY

Front

Atomic radius generally increases as we move __________.

Back

down a group and from right to left across a period.

Front

The electronegativity of Cl is the highest in Period 3. Why?

Back

Cl is the smallest and has the greatest effective nuclear charge.

Front

As you move across the periodic table atoms tend to get smaller because, ______________.

Back

the atoms have more protons.

Front

Which of the following will have a higher electronegativity than arsenic (As)?

Back

Carbon (C)

Front

Ionization energy is...

Back

how much energy it takes to remove an electron from an atom.

Front

What is periodicity in chemistry?

Back

Periodicity refers to the recurring trends that are seen in the properties of elements across different periods and groups in the periodic table.

Front

Define electronegativity.

Back

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

Front

What trend is observed in ionization energy across a period?

Back

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

Front

What is the trend of atomic radius down a group?

Back

Atomic radius increases down a group due to the addition of electron shells.

Front

Explain the concept of effective nuclear charge.

Back

Effective nuclear charge is the net positive charge experienced by an electron in a multi-electron atom, accounting for shielding by other electrons.