Periodic Table & Trends

Front

What is the atomic radius?

Back

The atomic radius is the distance from the nucleus of an atom to the outermost shell of electrons. It generally increases down a group and decreases across a period.

Front

Which element has the largest atomic radius in Group 18?

Back

Radon (Rn) has the largest atomic radius in Group 18.

Front

What is electronegativity?

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. It increases across a period and decreases down a group.

Front

Which element has the largest electronegativity in the halogens?

Back

Fluorine (F) has the largest electronegativity among the halogens.

Front

Which element has the lowest electronegativity in Period 3?

Back

Argon (Ar) has the lowest electronegativity in Period 3.

Front

Which alkaline-earth metal has the smallest electronegativity?

Back

Radium (Ra) has the smallest electronegativity among the alkaline-earth metals.

Front

Which halogen has the smallest electronegativity?

Back

Astatine (At) has the smallest electronegativity among the halogens.

Front

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

Back

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

Front

What trend is observed in electronegativity as you move across a period?

Back

Electronegativity increases as you move from left to right across a period.

Front

What is the significance of the periodic table in chemistry?

Back

The periodic table organizes elements based on their atomic number, electron configuration, and recurring chemical properties.