Trends in the Periodic Table Quiz

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R. Gallagher

Why is there an increase in electronegativity moving from gallium to germanium? (Pick two)

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Nuclear charge is increasing

Nuclear charge is decreasing

Atomic radius is increasing

Atomic radius is decreasing

Is the first ionisation energy of silicon greater than carbon

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Yes

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What is the numerical value of X?

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Explain why ionisation energy value of H is lower than that of G?

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G must have a half filled P sublevel

G must have a full P sublevel

H must have a half filled P sublevel

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"The energy required to break a bond and to separate the atoms in a gaseous state" defines...

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Bond energy

Ionisation energy

Bond reactivity

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What happens to reactivity going down the alkali metals?

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Increasing reactivity

Decreasing reactivity

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Define first ionisation energy

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The energy required to remove the most loosely bound electron in its gaseous state

The energy required to remove the most loosely bound electron

The energy required to remove the most loosely bound electron in its ground state of a gaseous atom

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Identify the elements B & P

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Helium

Lithium

Phosphorous

Sulfur

State the reason why the atomic radii decreases across a period

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Increase in nuclear charge (number of protons)

Screening effect

Increase in electronegativity

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What is the energy unit of ionisation?

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Joules

KJ per mole

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Ionisation values is an experimental method for the existence of energy levels. Name another.

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Line emission spectra

Atomic absorption

Precipitation

Isotopes

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Would it take more or less energy to remove an electron 'not' in its ground state?

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Less

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In the same group as magnesium, which has the smaller atom?

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Beryllium

Sodium

Calcium

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State the trend in atomic radii across a period in the periodic table

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Increase in atomic radii

Decrease in atomic radii

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Is the first ionisation energy of silicon greater than aluminium

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Yes

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In the periodic table which has the larger atomic radius?

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Magnesium

Sodium

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