Periodic Trends

Question 1

What is electronegativity?

Answer 1

Ability of an atom to attract electrons from another element

Question 2

What is electrostatic attraction?

Answer 2

More proton that create a higher positive charge resulting in a higher nuclear pull

Question 3

What is the most electronegative element?

Answer 3

Fluorine

Question 4

What is metallic character?

Answer 4

Measure of an atom to lose an electron to form a cation

Question 5

What is Atomic Radius?

Answer 5

Distance from the centre of the atom to the edge of the electron cloud

Question 6

What is the atomic radius trend?

Answer 6

• Increases down a group because of additional electron shell
• Decreases across a period because of electrostatic attraction

Question 7

What is the ionic radius trend?

Answer 7

• Increases down a group because of additional electron shell
• Increases across a period metals lose and non-metals gain

Question 8

What is ionisation energy trend?

Answer 8

• Decreases down a group because of electron shielding
• Increases across a period because of electrostatic attraction

Question 9

What is electronegativity trend?

Answer 9

-Decreases down a group because of electron shielding
- Increases across a period due to electrostatic attraction

Question 10

What is the valency trend?

Answer 10

• Stays the same when moving down a group
• increases across a period

Question 11

What is metallic character trend?

Answer 11

Increases down a group and decreases across a period