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Trends in the Periodic Table MCQ2

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Questions and Answers

What is the trend in electronegativity down a group?

Electronegativity increases

Electronegativity fluctuates

Electronegativity decreases (correct)

Electronegativity remains constant

Why does the 1st ionisation energy increase across a period?

Due to extra energy levels

Due to increased nuclear charge (correct)

Due to decreased atomic radius

Due to increased screening effect

What is the trend in atomic radius down a group?

Atomic radius increases (correct)

Atomic radius decreases

Atomic radius fluctuates

Atomic radius remains constant

What is the definition of the 1st ionisation energy of an element?

The minimum energy required to remove the most loosely bound electron from 1 mole of gaseous atoms Signup and view all the answers

What is the reason for the decrease in 1st ionisation energy down a group?

Increased atomic radius Signup and view all the answers

What is the definition of the 2nd ionisation energy of an element?

The minimum energy required to remove the most loosely bound electron from each singly charged positive ion Signup and view all the answers

What is the trend in electronegativity across a period?

Electronegativity increases Signup and view all the answers

Which factor leads to a decrease in electronegativity down a group?

Increased atomic radius Signup and view all the answers

What is the relationship between atomic radius and nuclear charge across a period?

Atomic radius decreases as nuclear charge increases Signup and view all the answers

Why does electronegativity increase across a period?

Due to increased nuclear charge Signup and view all the answers

What is the trend in 1st ionisation energy down a group?

Decreases Signup and view all the answers

What is the relationship between atomic radius and 1st ionisation energy across a period?

Atomic radius decreases as 1st ionisation energy increases Signup and view all the answers

Why does atomic radius increase down a group?

Due to increased screening effect and extra energy levels Signup and view all the answers