FUN CHEM REVIEW - TRENDS

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

The more protons there are, the  ____ .

• Weaker the pull
• Smaller the electrons
• Stronger the pull
• The bigger the electrons

Which one has the largest radius?

• Lithium (Li, atomic #3)
• Boron (B, atomic #5)
• Neon (Ne, atomic #10)
• Nitrogen (N, atomic #7)

What is the atomic radius?

• size of the atom

• the attraction between oppositely charged ions

• The distance around the atom

• energy needed to remove an electron

Which atom has the largest atomic radius?

• potassium

• rubidium

• francium

• cesium

When an atom gains an electron, the size of atom

• will increase

• will decrease

• will not change

When an atom loses an electron the size of atom

• will increase

• will decrease

• will not change

Which species has the larger radius?

• Cl

• ^Cl-