We appreciate your visit to Each iron atom has a mass of about 9 times 10 23 grams Even a small grain of iron has an incredible number of atoms. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!
Answer :
Answer:
A- the number of people in a large stadium; about 1x10 ^5
Step-by-step explanation:
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Final answer:
A grain of iron contains a number of atoms similar to the amount found in a speck of dust or a grain of sand. It far surpasses the number of stars in a galaxy like the Milky Way, but is also comparable to the estimated total number of sand grains on all of Earth's beaches.
Explanation:
The question is asking about the scale of atoms within a substance, which in this case is a grain of iron. The mass of an iron atom has been given as about 9 x 1023 grams, and the number of atoms in one grain of iron as about 1 x 1018. Considering size scales in atomic physics and chemistry, the number of atoms in a speck of dust or a grain of sand would be similar to the number of atoms in a grain of iron. Both tend to contain around 1018 to 1019 atoms.
In terms of other comparable quantities, the number of stars in a galaxy like our Milky Way is usually estimated to be about 100 billion (or 1 x 1011), which is several orders of magnitude less. Meanwhile, the number of sand grains on all the Earth's beaches is estimated to be around 7.5 x 1018, which would be very close to the number of iron atoms in a grain of iron.
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