10T Periodic Table Quiz

In terms of electronic configuration, explain why elements in the same group of the Periodic Table share similarities in their chemical properties.

• Similarities arise from identical numbers of protons.

• Elements in the same group have the same number of valence electrons.

• Similarities are due to the number of neutrons in the nucleus.

• Chemical properties depend on the number of isotopes present in a group.

Lithium and rubidium are both in Group 1 of the Periodic Table. Which statement is correct?

• Lithium atoms and rubidium atoms have the same number of electrons in their outer shell.

• Lithium atoms are larger than rubidium ions.

• Lithium ions and rubidium ions have the same number of electrons in their outer shell.

• Rubidium ions are larger than rubidium atoms.

Element X is found in group 7 of the Periodic Table. Which properties are typical of element X?

1. 1. Poor conductor of electricity

2. 2. Malleable

3. 3. High melting points

4. 4. Form acidic oxides

• 1 and 2

• 1 and 4

• 2 and 3

• 3 and 4

Most transition metals have higher melting points and density than a typical group 1 metal.

• True

• False

Across a period in the Periodic Table, which general trend is observed regarding the metallic and non-metallic character of elements?

• Metallic character increases; non-metallic character decreases

• Metallic character decreases; non-metallic character increases

• Metallic character remains constant; non-metallic character varies

• Metallic character and non-metallic character both increase simultaneously

• A

• B

• C

• D

The reactivity of the halogens decreases moving down the group.

Which statement explains this observation?

• Decreasing distance between the nucleus and outer shell makes it easier for the atom to attract electrons.

• Increasing distance between the nucleus and outer shell makes it easier for the atom to attract electrons.

• Decreasing distance between the nucleus and outer shell makes it harder for the atom to attract electrons.

• Increasing distance between the nucleus and outer shell makes it harder for the atom to attract electrons.

What is the primary factor used to determine the arrangement of elements in the Periodic Table?

• Atomic Mass

• Atomic Number

• Number of Protons

• Electronegativity

• A

• B

• C

• D

• A

• B

• C

• D