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Kryger [21]
3 years ago
13

How does an atom of chlorine-37 become a chloride ion with a -1 charge?

Physics
1 answer:
kirill115 [55]3 years ago
5 0

Answer:

B. The atom gains 1 electron, to make a total of 18 electrons.

Explanation:

Chlorine is the 17th element in the periodic table, so it has atomic number 17:

Z = 17

This means that a neutral atom of chlorine has 17 protons and 17 electrons.

When a chlorine atom gains 1 electron, its electric charge (initially zero) becomes -1, since the electron has negative charge of -1 (in elemntary charge units). This also means that the number of electrons in the ion is now

17 + 1 = 18

So the correct answer is

B. The atom gains 1 electron, to make a total of 18 electrons

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Harrizon [31]

Answer:

This is false.

Explanation:

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2 years ago
A scientist notices that an oil slick floating on water when viewed from above has many different colors reflecting off the surf
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Answer:

a) The minimum thickness of the oil slick at the spot is 313 nm

b) the minimum thickness be now will be 125 nm

Explanation:  

Given the data in the question;

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t_{min = 750 / 2(1.20)

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t_{min = λ/4n

given that; wavelength λ = 750 nm and  index of refraction of the oil n = 1.50

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t_{min = 750 / 4(1.50)

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t_{min = 125 nm

Therefore, the minimum thickness be now will be 125 nm

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