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2 years ago

What is meant by the octet rule? What electrons are involved? How does this affect how elements bond?

Chemistry

1 answer:

FromTheMoon [43]2 years ago

4 0

Answer:

The octet rule is a chemical rule of thumb that reflects the observation that main group elements tend to bond in such a way that each atom has eight electrons in its valence shell, giving it the same electronic configuration as a noble gas

Explanation:

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lawyer [7]

Answer:

Explanation:

you're moving the decimal 8 spots to the left so it can only be B

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2 years ago

Why cant magnesium ions be detected in a flam test?

Dmitry [639]

When magnesium ion doesn't give any characteristics colour with the flame test as electronic transisitons do not give out visible light.

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2 years ago

Which element has the greatest density at STP?

son4ous [18]

Answer: Option (4) is the correct answer.

Explanation:

It is known that density is mass divided by volume.

Mathematically, Density = $\frac{mass}{volume}$

Since, density is directly proportional to mass. So, more is the mass of an element more will be its density.

Mass of magnesium is 24.305 g/mol.

Mass of barium is 137.327 g/mol.

Mass of beryllium is 9.012 g/mol

Mass of radium is 226 g/mol.

Hence, radium has more mass therefore it will have the greatest density at STP.

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2 years ago

For every 4 hours that Alexa babysit her younger sister, her mom pays her $50

tiny-mole [99]

Answer:12.5

Explanation: Divide 50$ by the 4 hours and you will get 12.5 which is $12.50.

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2 years ago

Read 2 more answers

Which of the following is closest in meaning to the word “hypothesis”?

djyliett [7]

Answer:

suggested explanation

Explanation:

a hypothesis is like a guess to a question. then you test the guess.

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2 years ago