Exploring the Periodic Table

What are the main groups of the periodic table?

• Rare earth elements

• Noble metals

• Metalloids

• Alkali metals, Alkaline earth metals, Transition metals, Lanthanides, Actinides, Halogens, Noble gases

Which group contains the alkali metals?

• Group 4

• Group 2

• Group 3

• Group 1

What is the significance of the noble gases?

• Noble gases are highly reactive and form many compounds.

• Noble gases are primarily used as fertilizers in agriculture.

• Noble gases are important for their chemical inertness and diverse applications in industry and technology.

• Noble gases are essential for human respiration and survival.

How does atomic radius change across a period?

• The atomic radius fluctuates randomly across a period.

• The atomic radius increases across a period.

• The atomic radius decreases across a period.

• The atomic radius remains constant across a period.

What is the trend in electronegativity down a group?

• Electronegativity remains constant down a group.

• Electronegativity decreases down a group.

• Electronegativity increases down a group.

• Electronegativity fluctuates randomly down a group.

What is the electron configuration for oxygen?

• 1s² 2s¹ 2p⁴

• 1s² 2s² 2p⁴

• 1s² 2s² 2p²

• 1s² 2s² 2p⁶

Which element is in group 17 and is a gas at room temperature?

• Fluorine (F) or Chlorine (Cl)

• Carbon (C)

• Nitrogen (N)

• Oxygen (O)

What are the properties of transition metals?

• Transition metals have fixed oxidation states.

• Transition metals do not form complex ions.

• Transition metals are always colorless.

• Transition metals have variable oxidation states, form complex ions, exhibit magnetic properties, are often colored, and have high melting and boiling points.

How does ionization energy change across a period?

• Ionization energy increases across a period.

• Ionization energy fluctuates randomly across a period.

• Ionization energy remains constant across a period.

• Ionization energy decreases across a period.

What is the electron configuration for a sodium ion?

• 1s² 2s² 2p⁶

• 1s² 2s² 2p⁶ 3p⁶

• 1s² 2s² 2p⁶ 3s¹

• 1s² 2s² 2p⁵