Periodic Trends

The elements in the periodic table are arranged in order of increasing

• atomic number

• mass number

• number of neutrons

• oxidation number

Metals are found on the ___ side of the periodic table

• left

• right

Nonmetals are found on the ___ side of the periodic table

• left

• right

Which of these elements is a metal?

• Cu

• B

• O

• Cl

Which of these elements is a nonmetal?

• Ti

• Ag

• Si

• Br

Which of these elements is a metalloid?

• Sc

• Sb

• Cd

• Xe

As the elements in Period 3 of the Periodic Table are considered in order from left to right, which property generally decreases?

• atomic radius

• electronegativity

• ionization energy

• atomic number

Which trend is observed as you move down a group in the Periodic Table?

• Electronegativity increases

• Ionization energy decreases

• The number of valence electrons increases

• Atomic radius decreases

Which trend is observed as you move across a period in the Periodic Table?

• Atomic radius increases

• Ionization energy decreases

• Electronegativity increases

• Atomic number decreases

As you move down a group in the Periodic Table, which property generally increases?

• Atomic radius

• Ionization energy

• Electronegativity

• Number of valence electrons