Periodic Trends Flashcards

1
Q

Atoms get ____ going across a period.

A

Atoms get SMALLER going across a period

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Atoms get _____ going down a group

A

Atoms get LARGER going down a group

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What to mention in an atomic radii question?

A
  1. Relevant Trend
  2. No. of energy levels/shielding effect
  3. Nuclear Charge
  4. Distance between nucleus and valence electrons.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is Ionisation energy?

A

The energy needed to remove ONE ELECTRON from each atom in ONE MOLE of atoms in the GASEOUS state.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

I.E generally ____ going across a period

A

I.E generally INCREASES going across a period

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

I.E generally ____ going down a group

A

I.E generally DECREASES going down a group

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is Electronegativity?

A

A measure of the attraction that atoms have for their bonding electrons.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is electronegativity affected by

A
  1. Nuclear Charge - stronger pull on electrons - increased net electrostatic attraction.
  2. No. of Energy Levels - more energy levels, decreased net electrostatic attraction - valence electrons experience less attraction to thenucleus of other atoms
How well did you know this?
1
Not at all
2
3
4
5
Perfectly