Rutherford proposed that atoms have positive nuclei. Which statement correctly describes the nucleus of an atom?

Chemistry

2 answers:

DIA [1.3K]3 years ago

8 0

I'm not 100% sure but I'm leaning towards D. :)

Over [174]3 years ago

5 0

Answer:

D.)Most of the mass of an atom is located in the nucleus.

Explanation:

Rutherford conducted his famous gold foil experiment which refined our understanding of the structure of an atom. Through the experiment he observed that when positively charged alpha particles were bombarded against a thin gold foil, majority of them passed through the foil undisturbed whereas a small percentage retraced their path.

There were two main conclusions:

-Since most alpha particles simply passed through undeviated this suggested that majority of the space inside the atom is empty

- Also, since some of them completely bounced back this suggested that there is a positively charged core in which the mass of the nucleus is concentrated.

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How many grams of carbon (C) would be present in carbon monoxide (CO) that contains 2.666 grams of oxygen (O)? For example if th

oee [108]

Given :

Mass of oxygen containing carbon monoxide (CO) is 2.666 gram .

To Find :

How many grams of carbon (C) would be present in carbon monoxide (CO) that contains 2.666 grams of oxygen (O) .

Solution :

By law of constant composition , a given chemical compound always contains its component elements in fixed ratio (by mass) and does not depend on its source and method of preparation.

So , volume of solution does not matter .

Moles of oxygen , $n=\dfrac{2.666}{16}=0.167\ mole$ .