Electrostaic

Question 1

Atomic radius

Answer 1

Going down a group

Claim: going down a group atomic radius increases

Evidence: ex: Li’s atomic radius is 130pm and K’s atomic radius is 200pm
K is larger

Reasoning:
-Going down a group e- occupy more energy levels
- Distance between the nucleus and valence e- increases
According to Colomb’s law there is an inverse relationship between distance and electrostatics force
-There the nucleus cannot pull the valence e- closer, making it bigger

Question 2

Atomic radius across a period

Answer 2

Claim: Going across a period atomic radius decreases

Evidence: Li’s atomic radius is 130pm and F’s atomic radius is 60pm

Reasoning: Going across a period, nuclear charge increases because their are more p+
According to Colomb’s law there is a direct relationship between charge and electrostatics force
Therefore, the nucleus pulls the valence e- closer, making it smaller

Question 3

Ionization

Answer 3

Claim: Going down a period Izoniation energy decreases

Evidence- Na’s Ionization energy is 500 kj/mol and K’s ionization is 410 kj/mol

Reasoning: Going down a period, atomic radius increases because energy levels increase
-Distance between the nucleus and Valence e- increase
-According to Columb’s law there is a inverse relationship between distance and electrostatics force
Therefore, the nucleus pulls on the valence e- with less force, so it takes less energy to remove the Ve-

Question 4

ionization across a period

Answer 4

claim: Going across the period ionization energy increases

Evidence: if your element goes more right its bigger than those closer to left

Reasoning: Going across a period, atomic radius decreases because nuclear charge increases
-According to Columbus laws there is a direct relationship between charge and electrostatic force
-Therefore the nucleus pulls on the Ve- with more force, so it takes more energy to remove the Ve-

Question 5

Electronegativty

Answer 5

Claim: Going down electronegativity decreases
Reasoning: Going down atomic radius increases because energy levels increases
-Distance between nucelus and anotjer atoms valence e- increases
-According to Colombs law there is an inverse relationship between charge and eletrostatic force
There the nucelus pulls another atoms valence e- with more force, so it’s more electronegative

Question 6

Electronegativity across a period

Answer 6

Claim: Across a period electronegativity increases

Reasoning: Going down electronegativity atomic radius decreases because nuclear charge increases
-According to Colombo law this shows a direct relationship between charge and electrostatic force
-Therefore the nucleus pulls on another atom’s valence e- with less force, so it’s less electronegative