We use the following formula to calculate the number of atoms:
n (mol) = N(number of atoms) / NA
N(He) = n(mol) · NA
N(He) = 2,0 moles · 6.02·1023 = 12.04·1023 atoms
Answer:
SO the awnser is 76.9 trust me
Explanation:
charge of elements increases by one as you move from left to right.
Answer:
The boiling point of noble gas increases as you go down the group because the London dispersion forces increase.
