Explanation:
please mark me as brainlest
For 23., you have to find a way to measure your heart rate not increase it. search it up on google.
The piece of jewelry contains 5.08x10 21to the power dozen Ag atoms.
The number of subshells within a certain shell can be identified using the orbital angular momentum quantum number "l"
"l" is given values from zero till (n-1)
So, for n=6
l is given the following values: 0,1,2,3,4,5
Counting the number of subshells, we will find that the shell with n=6 has 6 subshells