Exploring Groups in the Periodic Table

The video tutorial explains the concept of groups in the periodic table, highlighting how elements in the same column share similar properties due to their valence electrons. It covers the characteristics and reactivity of alkali metals, alkaline earth metals, transition metals, and P block elements. The tutorial also discusses the unique properties of halogens and noble gases, emphasizing their reactivity and stability.

What is the standard convention for numbering groups in the periodic table?

• By columns

• By rows

• By atomic number

• By atomic mass

Why do elements in the same group have similar properties?

• They have the same number of protons

• They have the same number of neutrons

• They have the same number of valence electrons

• They have the same atomic mass

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Which group is referred to as the alkali metals?

• Group 2

• Group 1

• Group 18

• Group 17

What is unique about hydrogen compared to other elements in Group 1?

• It seeks to have two valence electrons

• It has more protons

• It is a transition metal

• It is a noble gas

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What is the electron configuration for lithium?

• 1s2 2p2

• 1s2 2p1

• 1s2 2s2

• 1s2 2s1

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Which group is known as the alkaline earth metals?

• Group 2

• Group 17

• Group 18

• Group 1

What is the electron configuration for scandium?

• 1s2 2s2 2p6 3s2 3p6 4s2 3d1

• 1s2 2s2 2p6 3s2 3p6 4s2 3d3

• 1s2 2s2 2p6 3s2 3p6 4s2 3d2

• 1s2 2s2 2p6 3s2 3p6 4s1 3d1

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How many valence electrons does carbon have?

• 8

• 2

• 4

• 6

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Which group is known as the halogens?

• Group 18

• Group 17

• Group 2

• Group 1

Why are noble gases non-reactive?

• They are metals

• They have the same number of protons and neutrons

• They have no electrons

• They have a full outer shell of electrons

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