Answer:
A) 0.1005 m
sorry if it's wrong
i think 40 grams
Explanation:
yes
n,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
The main difference is their energy level, 2s orbital is higher than 1s orbital.
20cm^2
Here, Density= Mass/ Volume
=100/5
= 20 cm^2