Reactivity Trends: Groups & Periods

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Tricky trends in the periodic table.

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Kimberly Etaoc

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Froggy Jumps Reactivity Trends: Groups & PeriodsVersión en línea Tricky trends in the periodic table. por Kimberly Etaoc 1 In a group, how does reactivity generally change for alkali metals? a Decreases down the group b Increases down the group c Stays constant 2 Across a period, how does reactivity of metals generally change? a Decreases from left to right b Increases from left to right c Stays the same 3 How does halogen reactivity change down its group? a Stays the same b Decreases down the group c Increases down the group 4 Across a period, nonmetal reactivity generally: a Stays the same b Decreases from left to right c Increases from left to right 5 In Period 3, which metal is most reactive? a Aluminum b Sodium c Magnesium 6 Why do alkali metals react more vigorously with water down the group? a Lower ionization energy and larger atomic size b Smaller atomic size c Higher ionization energy 7 Which group contains the most reactive metals? a Group 17 (halogens) b Group 18 (noble gases) c Group 1 (alkali metals) 8 Which group has the most reactive nonmetals? a Group 18 (noble gases) b Group 1 (alkali metals) c Group 17 (halogens) 9 In Period 2, which nonmetal is most reactive? a Nitrogen b Fluorine c Oxygen 10 What mainly explains higher nonmetal reactivity across a period? a Increasing effective nuclear charge b More neutrons c Increasing atomic radius

Froggy Jumps

Reactivity Trends: Groups & PeriodsVersión en línea

Tricky trends in the periodic table.

por Kimberly Etaoc

In a group, how does reactivity generally change for alkali metals?

Decreases down the group

Increases down the group

Stays constant

Across a period, how does reactivity of metals generally change?

Decreases from left to right

Increases from left to right

Stays the same

How does halogen reactivity change down its group?

Stays the same

Decreases down the group

Increases down the group

Across a period, nonmetal reactivity generally:

Stays the same

Decreases from left to right

Increases from left to right

In Period 3, which metal is most reactive?

Aluminum

Sodium

Magnesium

Why do alkali metals react more vigorously with water down the group?

Lower ionization energy and larger atomic size

Smaller atomic size

Higher ionization energy

Which group contains the most reactive metals?

Group 17 (halogens)

Group 18 (noble gases)

Group 1 (alkali metals)

Which group has the most reactive nonmetals?

Group 18 (noble gases)

Group 1 (alkali metals)

Group 17 (halogens)

In Period 2, which nonmetal is most reactive?

Nitrogen

Fluorine

Oxygen

What mainly explains higher nonmetal reactivity across a period?

Increasing effective nuclear charge

More neutrons

Increasing atomic radius

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Reactivity Trends: Groups & Periods

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Reactivity Trends: Groups & PeriodsVersión en línea

por Kimberly Etaoc

In a group, how does reactivity generally change for alkali metals?

Across a period, how does reactivity of metals generally change?

How does halogen reactivity change down its group?

Across a period, nonmetal reactivity generally:

In Period 3, which metal is most reactive?

Why do alkali metals react more vigorously with water down the group?

Which group contains the most reactive metals?

Which group has the most reactive nonmetals?

In Period 2, which nonmetal is most reactive?

What mainly explains higher nonmetal reactivity across a period?

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