Periodic Table Review DCP 1

The elements of which of these groups on the periodic table are most resistant to forming compounds?

• Group 1

• Group 9

• Group 14

• Group 18

An unidentified element has many of the same physical and chemical properties as magnesium and strontium but has a lower atomic mass than either of these elements. What is the most likely identity of this element?

• Sodium

• Beryllium

• Rubidium

• Calcium

According to the periodic table, which of these elements will form an ion with a +1 charge?

• S

• Mg

• Br

• Li

Throughout history, scientists from all over the world have contributed to our current understanding of the matter and energy that fills the universe. Which of the following scientists is credited with the development of the modern periodic table?

• John Dalton (English)

• Antoine Lavoisier (French)

• Dmitiri Mendeleev (Russian)

• Albert Einstein (German-American)

Which of the following Lewis dot diagrams shows an accurate representation of potassium?

• A

• B

• C

• D

What is the ground state electron configuration of scandium?

• [Ar] 4s² 3p¹

• [Ar] 4s² 3d¹

• [Ar] 4s² 4p¹

• [Ar] 4s² 4d¹

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d⁸

What element is represented by the ground state electron configuration shown above?

• Palladium

• Nickel

• Copper

• Rhodium

Which of the following elements has the greatest electronegativity?

• Sulfur

• Krypton

• Phosphorous

• Bromine

Which periodic table shown below represents the predicted trend associated with atomic radii?

The arrows point in the direction from lowest (-) to greatest (+).

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The diagram shows part of Dmitri Mendeleev’s original periodic table, with symbols of known elements and their atomic masses.

Mendeleev’s arrangement of elements is different than that of the modern periodic table. Based on Mendeleev’s arrangement, which elements should be placed in the shaded boxes labeled X and Z respectively?

• Indium (In), because it has a slightly higher atomic mass than aluminum (Al), and tin (Sn), because it has a slightly higher atomic mass than silicon (Si)

• Cadmium (Cd), because it has chemical properties similar to those of zinc (Zn), and mercury (Hg), because it has chemical properties similar to those of arsenic (As)

• Antimony (Sb), because it has a slightly higher atomic mass than zinc (Zn), and bismuth (Bi), because it also has a higher atomic mass than zinc (Zn)

• Gallium (Ga), because it has chemical properties similar to those of aluminum (Al), and germanium (Ge), because it has chemical properties similar to those of silicon (Si)