Atomic Radius Quiz

What is the trend in atomic radius as you move from left to right across a period in the periodic table?

• Remain constant

• Increase

• Decrease

• Fluctuate

Explain the variation in atomic radius as you move down a group in the periodic table.

• The atomic radius decreases

• The atomic radius becomes negative

• The atomic radius remains constant

• The atomic radius increases

Discuss the factors that contribute to the increase in atomic radius as you move down a group in the periodic table.

• The number of valence electrons increases

• The number of protons increases

• The number of electron shells increases

• The number of neutrons increases

Compare the atomic radius of lithium, sodium, and potassium. Explain the observed trend.

• The atomic radius of lithium is larger than the atomic radius of sodium, which is larger than the atomic radius of potassium.

• The atomic radius of potassium is larger than the atomic radius of sodium, which is larger than the atomic radius of lithium.

• The atomic radius of sodium is larger than the atomic radius of potassium, which is larger than the atomic radius of lithium.

• The atomic radius of potassium is larger than the atomic radius of lithium, which is larger than the atomic radius of sodium.

Compare the atomic radius of fluorine, chlorine, and bromine. Explain the observed trend.

• The atomic radius of fluorine is larger than the atomic radius of chlorine, which is larger than the atomic radius of bromine.

• The atomic radius of bromine is larger than the atomic radius of chlorine, which is larger than the atomic radius of fluorine.

• The atomic radius of chlorine is larger than the atomic radius of bromine, which is larger than the atomic radius of fluorine.

• The atomic radius of bromine is larger than the atomic radius of fluorine, which is larger than the atomic radius of chlorine.

What happens to the atomic radius as you move from right to left across a period in the periodic table?

• It increases

• It decreases

• It remains constant

• It fluctuates

Why does the atomic radius change as you move from left to right across the periodic table?

• It increases, because atoms have more electron shells

• It decreases, because atoms have less electron shells

• It increases, because atoms have more protons

• It decreases, because atoms have less protons