HW E. 1

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Trent Yamamoto 2J
Posts: 111
Joined: Sat Aug 17, 2019 12:18 am

HW E. 1

Postby Trent Yamamoto 2J » Thu Oct 03, 2019 9:17 pm

For this question (Fundamentals E.1), I don't understand why 288pm was used instead of the given 144pm. How did they get to this unit of measure?

Melvin Reputana 1L
Posts: 55
Joined: Sat Aug 17, 2019 12:16 am

Re: HW E. 1

Postby Melvin Reputana 1L » Thu Oct 03, 2019 9:18 pm

The reason why 288 pm was used instead of the given 144 pm was because that was radius of each atom. In order to get the whole size of the atom, you have to get the diameter of the atom which would be double the radius. Therefore, the value 288 pm was used in order calculate the total distance.

April Meza 3K
Posts: 66
Joined: Sat Sep 21, 2019 12:36 am

Re: HW E. 1

Postby April Meza 3K » Thu Oct 03, 2019 9:20 pm

Since the diameter is twice the radius, 144pm (the radius that is given) is multiplied by 2. That would be 288pm.

Mellanie Gamero 4D
Posts: 10
Joined: Tue Oct 01, 2019 12:16 am

Re: HW E. 1

Postby Mellanie Gamero 4D » Fri Oct 04, 2019 4:00 pm

Like the problem being discussed here, will other problems also display the radius rather than the diameter? Also why doesn't the problem directly display the diameter instead?

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