The vertical "groups" group elements by chemical properties the horizontal "periods" group elements by the number of energy levels
All elements in group 16 share similar properties because their valence shells all contain the s2p4 electron configuration.
No, the physical properties within a group are more alike than those of a period. This is because all elements in a group share the number of valence electrons.
Atom number 20 is Calcium (period IV, group 2)
The vertical elements are called groups. They have similar chemical properties.
All elements in group 16 share similar properties because their valence shells all contain the s2p4 electron configuration.
At Room Tempeture, Metals contain the most Elemants.
They all have the same number of valence electrons
Elements in the same group have similar characteristics because they have the same number of valence electrons, which determines their chemical properties. In contrast, elements in the same period have different characteristics because they have different numbers of energy levels and electron configurations.
Because the members of a group have the same number of valence electrons.
Yes, they do (since they have the same number of valence electrons).
Some share the same amount of valence electrons. Some could be classified in the same group such as metals, Nonmetal, Metalloids.