Question

1. 10^21 atoms of an element Y are found to have a mass of 500 mg. The gram atomic mass of the element is around __________.

2. The ratio of number of neutrons to protons in 82^pb^208 & 83^bi^209 :
a.is higher in Pb than Bi
b. is lower in Pb than Bi
c. is equal in both
d. cannot be calculated due to in sufficient data

Answer 1

Answer:

I was 2 one answer of it

is equal in both