Question

Li ; Rb (p,e,n) Помогитееееее

Answer 1

Li:
p=3;e=3;n=4
Rb:
p=37;е=37;n=48

Answer 2

Li (lithium) and Rb (rubidium) are both chemical elements in the periodic table. Here is some information about them:

Lithium (Li):

- Atomic number: 3 - Atomic mass: 6.94 atomic mass units - Symbol: Li - Electron configuration: 1s2 2s1 - Group: Alkali metal - Period: 2 - Block: s-block

Key points about lithium (Li): - Lithium is a soft, silvery-white metal that is highly reactive and flammable. - It is the lightest metal and the least dense solid element. - Lithium is commonly used in batteries, particularly rechargeable lithium-ion batteries, due to its high electrochemical potential. - It is also used in various other applications, such as in the production of ceramics, glass, and pharmaceuticals.

Rubidium (Rb):

- Atomic number: 37 - Atomic mass: 85.47 atomic mass units - Symbol: Rb - Electron configuration: [Kr] 5s1 - Group: Alkali metal - Period: 5 - Block: s-block

Key points about rubidium (Rb): - Rubidium is a soft, silvery-white metal that is highly reactive and easily oxidizes in air. - It is the second most electropositive element and has a low melting point. - Rubidium is used in various applications, including in the production of photocells, atomic clocks, and as a catalyst in certain chemical reactions. - It is also used in research and scientific experiments, such as in the study of Bose-Einstein condensates.

Please let me know if there's anything specific you would like to know about lithium or rubidium!