Periodic Trends

Front

What is electronegativity?

Back

Electronegativity is the ability of an atom to attract electrons towards itself in a chemical bond.

Front

How is the size of atoms measured?

Back

The size of atoms is measured by determining the distance between the nuclei of two bonded atoms.

Front

Which element is the most electronegative?

Back

Oxygen (O) is the most electronegative element.

Front

What does it mean if chlorine is more electronegative than hydrogen?

Back

It means that chlorine has a greater ability to attract electrons compared to hydrogen.

Front

Which element in group 2 has the largest atomic radius?

Back

Barium (Ba) has the largest atomic radius in group 2.

Front

What is atomic radius?

Back

Atomic radius is the distance from the nucleus of an atom to the outermost shell of electrons.

Front

How does atomic radius change across a period?

Back

Atomic radius decreases from left to right across a period due to increased nuclear charge.

Front

How does atomic radius change down a group?

Back

Atomic radius increases down a group due to the addition of energy levels.

Front

What is the trend of electronegativity across a period?

Back

Electronegativity increases from left to right across a period.

Front

What is the trend of electronegativity down a group?

Back

Electronegativity decreases down a group.