For GCSE Chemistry you need to be able to give the electron configurations for the elements up to and including Calcium (Atomic Number 20). The FULL Periodic Table below shows the first four Periods (rows). The Atomic Number is given for each element. Remember that this tells you the number of electrons in the atom. Fill in the electron configurations for every element up to Calcium (Ca). The first three have been done for you. Group Group Group Group Group Group Group Group I II III IV V VI VII 0 H He Period 1 2 1 1 2 Li Be B C N O F Ne Period 3 4 5 6 7 8 9 10 2 2,1 Na Mg Al Si P S Cl Ar Period 11 12 13 14 15 16 17 18 3 TRANSITION METALS Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr K Ca Period 19 20 4
For GCSE Chemistry you need to be able to give the FULL electron configurations for the elements up to and including Calcium (Atomic Number 20). The Periodic Table below shows the first four Periods (rows). The Atomic Number is given for each element. Remember that this tells you the number of electrons in the atom. Fill in the electron configurations for every element up to Calcium (Ca). The first three have been done for you. Group I Group II Group III Group IV Group V Group VI Group VII Group 0 Period 1 H 1 1 He 2 2 Period 2 Li 3 2,1 Be 4 B 5 C 6 N 7 O 8 F 9 Ne 10 Period 3 Na 11 Mg 12 TRANSITION METALS Al 13 Si 14 P 15 S 16 Cl 17 Ar 18 Period 4 K 19 Ca 20 Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
1.1.3_atomic_structure_wkst.docx