Radius, IE, & AE Trends

Which of the following atoms has the lowest first ionisation energy?

• Cl

• Be

• F

• Na

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

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

• the atoms have more mass.
• the atoms have less mass
• the atoms have more protons.
• the atoms have less electrons.

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

• Ar
• He
• Kr
• Rn

Which periodic group has the smallest atomic radius?

• Alkali metals
• Halogens
• Noble Gases
• Transition metals

Which of the following will have a larger radius than Zinc?

• Gallium
• Aluminum
• Magnesium
• Strontium

Which has the highest ionization energy?

• Arsenic

• Iron

• ZInc

• Cobalt

Which has a lower ionization energy?

• Lithium

• Cesium

• Sodium

Ionization energy __________ as you do across a period

• has no pattern

• stays the same

• decreases

• increases