Atomic Structure 2

Question 1

What is electronegativity ?

Answer 1

A measure of an atoms ability to attract electrons in a chemical bond

Question 2

Describe the trends in electronegativity

Answer 2

Across a period= increases
Down a group= decreases

Question 3

What is first ionisation energy?

Answer 3

The Enthalpy change when one mole of gaseous atoms forms one mole of gaseous ions with a single positive charge

Question 4

Describe the trend in ionisation energy ?

Answer 4

Across a period= increases
Down a group= decreases

Question 5

What is the no of electrons each sub shell can hold ?

Answer 5

S=2
P=6
D=10
F=14

Question 6

Describe the blocks of the periodic table

Answer 6

S on left
D in middle
P on right
F below

Question 7

What is the principle quantum number ?

Answer 7

The energy level of an electron (n)
n=1 is first shell

Question 8

What is angular quantum number ?

Answer 8

Shape of the orbital

Question 9

What is the magnetic quantum number ?

Answer 9

The orientation of an orbital in space