radioactivity, toxicity, instability, great atomic weight, great density, chemical reactivity, big atom diameter, etc.
They are the same
Silicon is the element. It is present in same group as C.
Elements in the same group have similar physical and chemical properties.
The elements in a group do not have the same number of shells, however, the elements in a horizontal row do have the same number of shells.
No, they do not. However, elements in the same group have the same number of valence electrons.
Same elements of group have same valency. They possess same chemical behaviour.
Copper, gold, and silver are the choices that represent a group of elements with common characteristics. All of these elements are metals.
GROUPS have more in common than PERIODS. I don't know why, I just know the answer.From, Bryan Hollick
They are the same
All elements in group 7 have the same no. of electrons in their outermost shells... and this no. correspondes to the group no.
elements in a group have the same number of valence electrons. The number of shells present increases as we move down a group.
they have the same number of outer electrons
number of valence electrons
Elements in the same group or family share the same number of valence electrons unless it is in groups 4-12 they vary and the have similar properties
elements are in the same group since they react similarly to other elements in that group.
Elements in the same family (or group) have the number of valence electrons in common. Ex: Family 16 - 6 valence electrons.properties
Elements in a given group have the same number of valence electrons and hence they have similar properties.