Podcast
Questions and Answers
What is the atomic radius of an element defined as?
What is the atomic radius of an element defined as?
- The distance between the nuclei of two atoms of the element joined together by a double covalent bond
- The distance between the nucleus and the outermost electron of an atom
- The distance between the nuclei of two atoms of different elements joined together by a single covalent bond
- Half the distance between the nuclei of two atoms of the element joined together by a single covalent bond (correct)
What is the main reason for the decrease in atomic radius across a period?
What is the main reason for the decrease in atomic radius across a period?
- Increase in atomic mass
- Decrease in nuclear charge
- Decrease in the number of energy levels
- Increase in nuclear charge (correct)
What is the trend in electronegativity down a group?
What is the trend in electronegativity down a group?
- Electronegativity increases due to increased screening effect
- Electronegativity increases due to increased nuclear charge
- Electronegativity decreases due to increased atomic radius (correct)
- Electronegativity remains constant due to balancing factors
What is the 1st ionisation energy of an element?
What is the 1st ionisation energy of an element?
What is the trend in 1st ionisation energy across a period?
What is the trend in 1st ionisation energy across a period?
What is the reason for the decrease in 1st ionisation energy down a group?
What is the reason for the decrease in 1st ionisation energy down a group?
What is the 2nd ionisation energy of an element?
What is the 2nd ionisation energy of an element?
Why does electronegativity increase across a period?
Why does electronegativity increase across a period?
What is the primary reason for the increase in atomic radius down a group?
What is the primary reason for the increase in atomic radius down a group?
Which of the following factors contributes to the decrease in electronegativity down a group?
Which of the following factors contributes to the decrease in electronegativity down a group?
What is the relationship between the atomic radius and the nuclear charge across a period?
What is the relationship between the atomic radius and the nuclear charge across a period?
What is the effect of increased screening on the 1st ionisation energy of an element?
What is the effect of increased screening on the 1st ionisation energy of an element?
What is the effect of the atomic radius on the electronegativity of an element?
What is the effect of the atomic radius on the electronegativity of an element?
What is the primary reason for the decrease in atomic radius across a period?
What is the primary reason for the decrease in atomic radius across a period?
What is the effect of the nuclear charge on the electronegativity of an element?
What is the effect of the nuclear charge on the electronegativity of an element?
