Pages in this set

Page 1

Preview of page 1
Unit 1 ­ Atomic Structure




Fundamental Particles ­ Protons, Electrons and Neutrons

Isotopes- atoms of the same element that contain a different number of neutrons.

Different isotopes of the same element react identically, as they have the same number of protons
and neutrons, but different mass numbers due to different…

Page 2

Preview of page 2
Unit 1 ­ Atomic Structure




Na(g) e- + Na+(g)
The second ionisation energy is the energy required to remove the second electron (not both
electrons):
First: Na(g) e- +Na+(g)
Second Na+(g) e- +Na2+(g)


Factors affecting ionisation energy
Atomic radius
The further the outer electron from the nucleus, the less energy…

Page 3

Preview of page 3
Unit 1 ­ Atomic Structure




1 1s 2

2 2s2p 8

3 3s3p3d 18

4 4s4p4d4f 32


Electrons fill orbitals from the lowest energy upwards.
1s22s22p63s33p64s23d104p6

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all resources »