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Vlad [161]
2 years ago
5

True or false The mass of an electron is about equal to the mass of a proton.

Chemistry
1 answer:
pogonyaev2 years ago
7 0
That is false (please mark me brainliest)
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How many elements and atoms are in marble
DochEvi [55]

Answer:

Explanation:

Scientists know that there are 6x1023 molecules in a mole - so we have about 0.5x1023 molecules in our marble…and since every silicon dioxide molecule has one atom of silicon and two of oxygen, we have a grand total of 1.5x1023 atoms. That's 150,000,000,000,000,000,000,000 atoms

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3 years ago
Which ion is formed when an atom of fluorine (f) gains one electron? f–1 f–2 f 1 f 2
gregori [183]

Answer:

If a fluorine atom gains an electron, it becomes a fluoride ion with an electric charge of -1.

Explanation:

hope this helps

pls mark brainliest

6 0
2 years ago
What is the name of CH3CH2CHMgBr(CH3)?​​
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Answer:

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4 0
1 year ago
4.<br>How many parents take part in binary fission?​
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Binary fission is done by one parent . as one parent cell divides it into two daughter cells and further.
7 0
3 years ago
Read 2 more answers
Elements donate 2 electron to produce a cation with a 2+ charge
hammer [34]

Answer: alkaline earth metals (group-IIA)

Explanation:

The element which donates the electron is known as electropositive element and forms a positively charged ion called as cation. The element which accepts the electrons is known as electronegative element and forms a negatively charged ion called as anion.

Alkaline earth metals donate 2 valence electrons to acquire noble gas configuration.

For example: Berrylium is the first alkaline earth metal with atomic number of 4 and thus has 4 electrons

Electronic configuration of berrylium:

[Be]:4:1s^22s^2

Berrylium atom will loose two electrons to gain noble gas configuration and form berrylium cation with +2 charge.

[Be^{2+}]:2:1s^2

Thus Elements donate 2 electron to produce a cation with a 2+ charge are alkaline earth metals.

5 0
3 years ago
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