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garik1379 [7]
3 years ago
10

Which best describes the modern periodic table?

Chemistry
1 answer:
kaheart [24]3 years ago
5 0

answer:

D.

explanation:

as days years months go by more and more new elements that are chemically made or are natural are added even though the ones at school have been updated for such a long period of time

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<em>Hope this helped! :)</em>
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asambeis [7]

Answer:

D. O^{2-}

Explanation:

In Chemistry, electrons can be defined as subatomic particles that are negatively charged and as such has a magnitude of -1.

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4 0
2 years ago
What is the number of ions in 0.20 mol of (NH4)3PO4?
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hey, it's B

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At STP, how many moles are in 0.880L of He gas?
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