St about the structure The table below gives details of the atomic structure of five atoms, A, B, C, D and E. (Note that these letters are
not their chemical symbols.)
Complete the table to show the electron arrangement of each of the atoms.
at Slace
Atom
Proton number
Electron arrangement
2nd shell
3rd shell
1st shell
4th shell
ney came. What pert
narticles repelled
A
2
B
S
с
13
D
15
E
19
i How many of these atoms are of elements in the second period of the Periodic Table?
research. Because
s important in the
ii Which two atoms belong to elements in the same group?
he information
il How many electrons does atom C have which would be involved in chemical bonding?
iv Draw a diagram to show the arrangement of the electrons in atom D.
umber of
n