3 years ago

How did the work of Dmitri Mendeleev differ from that of John Newlands in the development of the periodic table?

1 answer:

3 0

When Newlands tried to create a periodic table, his tried to conform to the "Rule of Octaves" he had discovered. He had the right idea, in that if you arrange the elements by atomic weight there would be similarities every 7 elements (not 8 because noble gases hadn't been discovered yet) but he tried to push this rule so much that he would put multiple elements in the same box to try to keep the rule. Mendeleev, however, left gaps in this table for undiscovered elements, which paved the way for our modern periodic table.

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Differentbetween sound and vibration

Fiesta28 [93]

Answer:

Both are similar concepts.

Sound is the vibration of air particles (compression and expansion) the can reach your ears. But you can have vibration being propagated in liquids and solids as well.

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Explanation:

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2 years ago

3.) All matter has both physical and chemical properties. A physical property is one that does not change the chemical nature of

dexar [7]

Answer:

Explanation:

It would be D because you are observing the reaction and don’t change anything

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Which ion does not have a noble gas configuration in its ground state?

goldfiish [28.3K]

I think the answer would be Ga3+

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2 years ago

I’m just doing this because it told me to in order to get the answer for my homework?

andrew-mc [135]

Ok good luck on your homework then

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2 years ago

Read 2 more answers

Use this diagram to answer the following

mylen [45]

Answer:An atom

Explanation:

Because molecules more spread out and have things that connnect them and are not bunched up togoether

And Atoms are all packed up like in the picture

Hope this helps!:D

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2 years ago