Periodic trends

Which atom has the largest atomic radius?

• potassium

• rubidium

• francium

• cesium

As you move down the periodic table atoms get bigger.  This is because ____________.

• The atoms have more mass.

• The atoms have more protons.

• The atoms have more energy levels

• The atoms have more nuetrons

The atom with the largest atomic radius in Group 18 is - 

• Ar

• He

• Kr

• Rn

Larger atoms on the periodic table are

• near the bottom left

• near the top right

• in the middle

• trends cannot be determined.

Which atom has the largest atomic radius?

• potassium

• rubidium

• francium

• cesium

As you move down the periodic table atoms get bigger.  This is because ____________.

• The atoms have more mass.

• The atoms have more protons.

• The atoms have more energy levels

• The atoms have more nuetrons

The atom with the largest atomic radius in Group 18 is - 

• Ar

• He

• Kr

• Rn

Which of the following elements would be larger: potassium or cesium?

• potassium

• cesium

• both atoms are the same size

• cannot be determined

• the sizes can vary

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

• the atoms have more mass.

• the atoms have less mass

• more protons, increasing nuclear charge

• the atoms have less electrons.

LOOK at the graph. As the atomic number increases, going from left to right what happens to the radius between atomic numbers 3 to 10?

• remains the same

• decreases

• increases

• cannot be determined