Period Table 'blocks'

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haleyervin7
Posts: 61
Joined: Fri Sep 28, 2018 12:15 am

Period Table 'blocks'

Postby haleyervin7 » Thu Oct 18, 2018 1:46 pm

What exactly does it mean when an element is in the "p-block" or "s-block", etc?

Chem_Mod
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Re: Period Table 'blocks'

Postby Chem_Mod » Thu Oct 18, 2018 1:53 pm

We determine what block an element is based on its valence electrons. If an element has its valence electron in the p subshell, then it belongs to the p block. The s block contains elements in the first two columns while the p block contains elements in the last six columns.

Nicolle Fernandez 1E
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Re: Period Table 'blocks'

Postby Nicolle Fernandez 1E » Thu Oct 18, 2018 2:08 pm

The s-block are the elements on columns 1 and 2, the p-block are the elements on columns 13-18, and the d block are the elements on columns are 3-12. They are grouped by columns because elements in the same column has the same number of valence electrons, and blocks are determined by valence electrons.

Lauren Ho 2E
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Re: Period Table 'blocks'

Postby Lauren Ho 2E » Thu Oct 18, 2018 3:10 pm

For example, Potassium can be written as 1s^2 2s^2 2p^6 3s^2 3p^6 4s^1 or [Ar] 4s^1; it is part of the S block

anthony_trieu2L
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Joined: Fri Sep 28, 2018 12:29 am

Re: Period Table 'blocks'

Postby anthony_trieu2L » Thu Oct 18, 2018 3:18 pm

Blocks are essentially a simple way to categorize elements into their respective orbital. These categories are determined by the highest energy electrons.

Layla Manoochehri
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Re: Period Table 'blocks'

Postby Layla Manoochehri » Sun Oct 21, 2018 7:31 pm

do we need to know these blocks for the test this week? i know he said we'd only need to know information covered until friday of week 3 but i can't really remember if we went over this quickly and i just don't remember, or if we don't need to know it for this test.


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