Question

The radius of a strontium atom is 215 pm. How many strontium atoms would have to be laid side by side to span a distance of 2.31 mm?

Answer 1

Hello dear,

● Answer -

n = 6.1×10^6 atoms

● Explaination -

# Given-

r = 215 pm = 2.15×10^-10 m

d = 2.62 mm = 2.62×10^-3 m

# Solution -

No of strontium atoms that can be laid side by side -

n = d / 2r

n = 2.62×10^-3 / (2×2.15×10^-10)

n = 6.1×10^6 atoms

Therefore, 6.1 million strontium atoms can be laid side by side in given distance.

Hope this helps you...