Potassium is in group 1 and the group elements are hydrogen, lithium, sodium, potassium, rubidium, cesium, francium
Noble gases (or group 18 elements)
Elements in the same group have similar chemical properties. For example, potassium (K) and rubidium (Rb) are in the same group (Group 1) on the periodic table.
The elements in group 17 are known by the name halogens. They are non-metal elements and are at times referred to as salts.
These six elements are Li, Na, K, Rb, Cs and Fr.
Group 1 Metals
K
Another name for Group 17 (VIIA) Elements is Halogens.
The order of a cyclic group is the number of distinct elements in the group. It is also the smallest power, k, such that xk = i for all elements x in the group (i is the identity).
Chromium Group
Noble gases (or group 18 elements)
Elements in the same group have similar chemical properties. For example, potassium (K) and rubidium (Rb) are in the same group (Group 1) on the periodic table.
The elements k and kr both belong to the same group on the periodic table, Group 18, which is the noble gases group. They are chemically inert and have a full outer electron shell, making them stable and unreactive.
transition metals
The elements in group 17 are known by the name halogens. They are non-metal elements and are at times referred to as salts.
Group IA or group 1 elements are known as alkali metals.
These six elements are Li, Na, K, Rb, Cs and Fr.
Group 1 Metals