## Atomic Radius

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Alma Carrera 3C
Posts: 33
Joined: Fri Apr 06, 2018 11:02 am

### Atomic Radius

I understand that the atomic radii decreases along the periods and increases down the groups, but do we have to know the actual radius? For example in problem 2.57 from the 6th edition, they include the actual radius of the elements, but I don't know where they got those values from.

MinaChoi_3H
Posts: 31
Joined: Fri Sep 28, 2018 12:25 am

### Re: Atomic Radius

Information like this will be given, you don't need to memorize them.

Nathan Tran 4K
Posts: 92
Joined: Fri Sep 28, 2018 12:16 am

### Re: Atomic Radius

Knowing the trend like you mentioned is probably something we need to know, but knowing the actual values will be given, as we are not expected to memorize the values of atomic radii.

Miriam Sheetz 2B
Posts: 64
Joined: Fri Sep 28, 2018 12:25 am

### Re: Atomic Radius

You only will know the atomic radius if it is experimentally determined. For the purposes in our class, we only have to know the general trend.

Hanlin Zhu 4G
Posts: 30
Joined: Fri Sep 28, 2018 12:28 am

### Re: Atomic Radius

I think knowing the general trends and being able to compare between two atoms given a periodic table is needed. We don't need to memorize the specific values.

harperlacroix1a
Posts: 43
Joined: Fri Sep 28, 2018 12:19 am

### Re: Atomic Radius

I doubt we will be expected to know exact values. I think just knowing the trends and which radii is larger is sufficient

Niveda_B_3I
Posts: 60
Joined: Fri Sep 28, 2018 12:24 am

### Re: Atomic Radius

You just need to know trends, and maybe why the trends make sense.

Jonathan Cheng 3C
Posts: 30
Joined: Fri Sep 28, 2018 12:23 am
Been upvoted: 1 time

### Re: Atomic Radius

We only need to know the general trend of atomic radii and the other properties. Information such as the specific atomic radii will be given to us on the test if it is needed to be used.

Anjali 4A
Posts: 59
Joined: Fri Sep 28, 2018 12:28 am

### Re: Atomic Radius

I believe that we don't have to know the specific values as they will be provided to us if needed. Knowing the trends and justifications will be helpful.

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