Periodic Trends

Front

What is the atomic radius trend across Period 2?

Back

The atomic radius generally decreases across Period 2 from left to right.

Front

Which element in Period 2 has the greatest atomic radius?

Back

Lithium (Li) has the greatest atomic radius in Period 2.

Front

What is electronegativity?

Back

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

Front

What is the range of electronegativity difference for a polar covalent bond?

Back

The difference in electronegativity must be between 0.4 and 1.7 for a bond to be polar covalent.

Front

What is the trend of electron affinity across a period?

Back

Electron affinity generally increases across a period.

Front

What is the trend of electron affinity down a group?

Back

Electron affinity generally decreases down a group.

Front

What is metallic character?

Back

Metallic character refers to the level of reactivity and properties of metals.

Front

What is the trend of metallic character across a period?

Back

Metallic character decreases going across a period.

Front

What is the trend of metallic character down a group?

Back

Metallic character tends to increase going down a group.

Front

What are periods in the periodic table?

Back

Periods are the horizontal rows of the periodic table.