Exploring the Periodic Table

What is the electron configuration of oxygen?

• 1s² 2s¹ 2p⁶

• 1s² 2s² 2p⁴

• 1s² 2s² 2p⁵

• 1s² 2s² 2p³

How many valence electrons do alkali metals have?

• 3

• 4

• 2

• 1

What distinguishes metals from nonmetals in terms of conductivity?

• Both metals and nonmetals have similar conductivity levels.

• Metals are good conductors due to free electrons; nonmetals are poor conductors.

• Metals conduct electricity through ionic bonds; nonmetals do not conduct at all.

• Metals are poor conductors due to free electrons; nonmetals are good conductors.

Which noble gas has the atomic number 10?

• Neon

• Xenon

• Krypton

• Argon

What is the general electron configuration pattern for transition metals?

• (n-1)d^1 to (n-1)d^10

• (n-1)d^0 to (n-1)d^5

• (n+1)s^1 to (n+1)s^2

• (n-2)p^1 to (n-2)p^6

How do you determine the group number of an element in the periodic table?

• The group number is determined by the element's color in the periodic table.

• The group number is assigned randomly without any specific rule.

• The group number is determined by the vertical column of the element in the periodic table.

• The group number is based on the atomic mass of the element.

What is the electron configuration for a chlorine atom?

• 1s² 2s² 2p⁶ 3s² 3p⁴

• 1s² 2s² 2p⁶ 3s² 3p⁶

• 1s² 2s² 2p⁶ 3s² 3p³

• 1s² 2s² 2p⁶ 3s² 3p⁵

Which group in the periodic table contains the most reactive nonmetals?

• Group 1 (Alkali Metals)

• Group 18 (Noble Gases)

• Group 2 (Alkaline Earth Metals)

• Group 17 (Halogens)

What is the significance of the noble gases in the periodic table?

• Noble gases are essential for plant growth and photosynthesis.

• Noble gases are chemically inert and stable, making them useful in various applications.

• Noble gases are primarily used as fuels in engines.

• Noble gases are highly reactive and form compounds easily.

How does the electron configuration of an element affect its chemical properties?

• The electron configuration affects an element's reactivity and bonding behavior.

• It determines the element's color and size.

• It has no impact on the element's physical state.

• It solely dictates the element's atomic mass.