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Artyom0805 [142]
2 years ago
5

How many valence electrons does Bromine have?

Chemistry
2 answers:
soldi70 [24.7K]2 years ago
8 0

Answer:

7

Explanation:

Delvig [45]2 years ago
6 0

Answer:

Bromine has 7 valence electrons.

Explanation:

Bromine is in group 7 or 17, so it has 7 valence electrons use the Lewis structure for more help.

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A sample of a given compound contains 13.18g of carbon and 3.32g of hydrogen. What is the percent composition of the compound?
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The percent composition of the compound is 79.87 % of carbon and 20.12% of hydrogen

Explanation:

Given:

mass of carbon = 13.18 grams

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From the given data total mass of the compound is calculated

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The individual percentage of hydrogen and carbon will be calculated as:

percent composition  = \frac{individual mass of the element}{total mass of the compound} x 100

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for hydrogen:

\frac{3.32}{16.5}

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