Group 18, Period 4 of the Periodic Table contains the element Krypton (Kr). Krypton is a noble gas, known for being colorless, odorless, and inert under standard conditions. It has an atomic number of 36 and is used in various applications, including lighting and Photography. As a member of the noble gases, it has a complete valence electron shell, which contributes to its low reactivity.
Helium is in the first period of the periodic table.
Argon belongs to the p-block in the periodic table. It is located in Group 18, Period 3 of the periodic table.
Helium is located on the group 18 and period 1 on the modern periodic table.
The element radium (symbol Ra) is in period 7.
Argon (Ar, element number 18) is the last element in the third period of the periodic table.
Helium is in the first period of the periodic table.
Xenon is a noble gas, so it is in group 18. It is in period 5.
Argon belongs to the p-block in the periodic table. It is located in Group 18, Period 3 of the periodic table.
Helium is located on the group 18 and period 1 on the modern periodic table.
Neon is in period 2 of the periodic table, and in group 18, the noble gases
The element radium (symbol Ra) is in period 7.
Argon (Ar, element number 18) is the last element in the third period of the periodic table.
Helium is the element that is placed in period 1 and group 18 of the periodic table. It is inert in nature and hence stable.
Xenon is in Group 18, the "inert" elements.
Xenon is in group 18 (also known as the noble gases) and period 5 on the periodic table.
neon is found in group 18, period 2
Period (row) 4 Group 18, 0 or 8, depending on how complex your table is. I would go with 8 as it is probably simplest