Question

1= How many shell's in Atom.​

Answer 1

Answer:

two electrons

Each shell can contain only a fixed number of electrons: The first shell can hold up to two electrons, the second shell can hold up to eight (2 + 6) electrons, the third shell can hold up to 18 (2 + 6 + 10) and so on.

...

List of elements with electrons per shell.

Z 18

Element Argon

No. of electrons/shell 2, 8, 8

Group 18

Answer 2

Answer:

The shell closest to the nucleus, 1n, can hold two electrons, while the next shell, 2n, can hold eight, and the third shell, 3n, can hold up to eighteen. The number of electrons in the outermost shell of a particular atom determines its reactivity, or tendency to form chemical bonds with other atoms.

Explanation:

this may help you please follow me and give thanks