Unit 6 Part 2 Retake Review

Groups on the Periodic Table contain elements with similar chemical properties and reactivity because —

• A. they have the same number of valence electrons

• B. they contain similar amounts of energy

• C. their preference is to have full or empty valence shells

• D. they have the same numbers of isotopes

Which statement is true about elements in Group 16 on the Periodic Table?

• They have two valence electrons.

• They need six electrons to complete their octet.

• They have an oxidation number of 2+.

• They have an oxidation number of 2-.

Which of the following most likely describes a Group 10 element?

• A. A member of the carbon group

• B. Good conductor of heat

• C. Gas at room temperature

• D. Poor conductor of electricity

Mrs. Garcia is examining the physical properties of sodium (Na), a metal in Group 1 of the Periodic Table. Which element is most likely to have similar physical properties to sodium (Na), based on their positions in the Periodic Table?

• Potassium (K)

• Magnesium (Mg)

• Chlorine (Cl)

• Oxygen (O)

Which of the following elements is most likely to have chemical properties similar to phosphorus (P) based on its position on the Periodic Table?

• A. Aluminum (Al)

• B. Silicon (Si)

• C. Sulfur (S)

• D. Neon (Ne)

Ms. Patel asks her students to analyze the reactivity of sulfur (S) on the Periodic Table. Which of the following elements is most likely to have chemical properties similar to sulfur (S)?

• Oxygen (O)

• Selenium (Se)

• Chlorine (Cl)

• Phosphorus (P)

Mr. Thompson explains that elements in the same group share chemical properties. Which element is most likely to behave like oxygen based on its group placement on the Periodic Table?

• Nitrogen (N)

• Flourine (F)

• Sulfur (S)

• Chlorine (Cl)

The periodic table contains elements that all have varying atomic masses and reactivity. A student is wanting to research an element that has similar reactivity to sodium, but a greater atomic mass. Which of the following elements could the student choose to study? Select TWO correct answers.

• lithium (Li)

• magnesium (Mg)

• potassium (K)

• francium (Fr)

• silicon (Si)

Element Y is a stable, odorless, tasteless gas at room temperature. Where would element Y be placed on the periodic table?

• A

• B

• C

• D

What best explains why sodium is more likely to react with an element other than neon?

• Sodium has one fewer proton than neon.

• Sodium has one more neutron than neon.

• Sodium has one fewer electron than neon.

• Neon has a full outer electron shell.