Understanding Periodic Trends in Chemistry

Which of the following elements has the highest ionization energy?

• Sodium (Na)

• Chlorine (Cl)

• Potassium (K)

• Magnesium (Mg)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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

• It decreases

• It increases

• It remains constant

• It first increases, then decreases

Which group in the periodic table is known for having elements with a charge of +1?

• Group 1

• Group 2

• Group 13

• Group 17

Which of the following elements is classified as a metalloid?

• Silicon (Si)

• Oxygen (O)

• Iron (Fe)

• Neon (Ne)

What happens to the atomic radius as you move down a group in the periodic table?

• It decreases

• It increases

• It remains constant

• It first decreases, then increases

Which of the following elements has the smallest ionic size?

• Fluorine (F)

• Iodine (I)

• Bromine (Br)

• Chlorine (Cl)

What is the typical charge of elements in Group 16?

• +2

• -2

• +1

• -1

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following statements is true about metals?

• They are good conductors of electricity

• They are generally brittle

• They have high electronegativity

• They are poor conductors of heat

What is the atomic number of Carbon (C)?

• 6

• 12

• 8

• 14

Which group in the periodic table contains the noble gases?

• Group 1

• Group 2

• Group 17

• Group 18