Question

Identify the doberiners traid which has alkali
metals?​

Answer 1

Answer:

This triad was made up of the alkali metals lithium, sodium, and potassium. The arithmetic mean of the masses of potassium and lithium corresponds to 23.02, which is almost equal to the atomic mass of sodium.

Triad: Atomic Masses

Potassium: 39.1

Sodium: 22.99

Lithium: 6.94

Answer 2

This triad was made up of the alkali metals lithium, sodium, and potassium. The arithmetic mean of the masses of potassium and lithium corresponds to 23.02, which is almost equal to the atomic mass of sodium.
Triad: Atomic Masses
Potassium: 39.1
Sodium: 22.99
Lithium: 6.94