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faust18 [17]
2 years ago
13

Which experiment led to the idea that atoms contain a nucleus?

Chemistry
1 answer:
Kitty [74]2 years ago
6 0

Answer:

Rutherford's gold foil experiment showed that the atom is mostly empty space with a tiny, dense, positively-charged nucleus. Based on these results, Rutherford proposed the nuclear model of the atom.

Explanation:

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7 0
3 years ago
A rectangular fence is 3 times as long as it is wide. The perimeter is 60ft. Find the dimensions of the fence
Mashutka [201]

Answer:

The length of the fence is 22.5ft and the width of the fence is 7.5ft.

Explanation:

To solve this problem we will turn this question into an equation.

The equation for the perimeter of a rectangle is 2l + 2w = perimeter.

In the question we were given the perimeter so we can go ahead and plug this in.

2l + 2w = 60

In the question we are also told that the fence is 3 times as long as it is wide. This means that 1l = 3w. We can now subsitute l for 3w so that we only have one variable.

2(3w) + 2w = 60

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Now that we know the value of w we can find the value of l since we know 1l = 3w.

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The length of the fence is 22.5ft and the width of the fence is 7.5ft.

7 0
3 years ago
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