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BlackZzzverrR [31]
3 years ago
11

The first periodic table was organized according to atomic mass, but the current periodic table is arranged according to atomic

number. why is the atomic number now the basis for the periodic table?
Chemistry
1 answer:
Brut [27]3 years ago
3 0

Answer:

It helps identify trends and group elements with similar properties.

Explanation:

Arranging the elements according to the atomic mass wouldn't help us have groups and periods with predictable properties that we can have when arranging it according to atomic number. Don't forget that isotopes have different masses.

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How many moles of KCl are required to prepare 1.50 L of 5.4 M KCl?
puteri [66]
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3 years ago
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x = 0.57*2/5 = 0.228 mol FeO

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I hope this helps!
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