Helium, Neon, Argon and if another Krypton.
Argon is in Group 18 (Noble Gases) and Period 3 on the periodic table.
Fluorine because it is the furthest right on the periodic table. Do no include noble gases in energies.
Argon. "Period 3" means the third row of the periodic table. Noble gases are in "Group 18", the column on the far right.
The p-block on the periodic table is the chunk of mostly nonmetals starting at group 13 that ends at the Noble gases on the far right side.
You typically find ions at the two extreme ends (left and right) of the periodic table, except for the noble gases, which are all in the group farthest to the right of the periodic table. Positive ions are always to the left, negative are to the right (except for, of course, the noble gases, which are neutral).
The 3 major groups are: # Metals - Groups 1-15 and the Inner Transitional Elements # Nonmetals - Groups 1 and 14-18 # Metalloids - Groups 13-17 (Diagonal strip of elements separating the metals from the nonmetals)
You can identify alkali metals in Group 1, alkaline earth metals in Group 2, transition metals in Groups 3-12, halogens in Group 17, and noble gases in Group 18 on the periodic table. Each group has characteristic properties that define them, such as valence electrons and reactivity, which can help in their identification.
The basic famillies are - Group 1 the alkali metals. Group 2 the alkali earth metals Group 7 the halogens Group 0 or 8 (depending on your periodic table) are the noble gases.
The region containing mostly elements that are gases at room temperature is the rightmost column, known as the noble gases or Group 18. These elements have full outer electron shells, making them stable and non-reactive, which allows them to exist as gases at room temperature.
The groups of the periodic table are:Group 1: Alkali MetalsGroup 2: Alkali Earth MetalsGroup 3: BoronGroup 4: CarbonGroup 5: NitrogenGroup 6: OxygenGroup 7: HalogensGroup 8: Noble or Inert Gases
AnswerThere are 18 groups across the periodic table, and they are numbered 1 through 18. Group 1:Alkali Metals*Group 2:Alkaline Earth MetalsGroups 3-12: Transitional MetalsGroups 13&14: UnnamedGroup 15:Pnictogens or Pnicogens)Group 16: ChalcogensGroup 17: HalogensGroup 18: Noble Gases*excluding hydrogen (hydrogen is in its own group)
All the metals are to the left of a thong called a staircase. Along the staircase are all the metaloids. To the right of the staircase are the non metals, halogens and noble gases.