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vredina [299]
3 years ago
15

An element whose third shell contains two p electrons

Chemistry
2 answers:
aalyn [17]3 years ago
4 0

Answer:

Carbon

Explanation:

Data:

The element must have the configuration:

1s². 2s²2p²

In other words, the number of valence electrons should be 4 (2s²2p²). Looking at the periodic table, carbon fits the criteria.

pentagon [3]3 years ago
3 0
Maybe sodium? becasue its an element and I would like some points... sorryy:((((
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<u>Explanation:</u>

When an aqueous solution of lead nitrate (Pb(NO₃)₂ is mixed with aqueous solution of potassium iodide (KI), then there is a precipitate formation of lead iodide (PbI₂), and the potassium  (K⁺) ion and nitrate (NO₃⁻) ion acts as spectator ions that is ions do not involved in the reaction.

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