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Nutka1998 [239]
3 years ago
8

Fluorine belongs to group 17. How many covalent bonds are formed between two fluorine atoms?

Chemistry
2 answers:
PSYCHO15rus [73]3 years ago
7 0
Answer: 1

Fluorine is in group 7, meaning that it has 7 valence shell electrons and to fulfill the octet rule it can only obtain 1 more electron.

When bonding the last lone pair for each of the two fluorine atoms together you create a total of two electrons shared between each.

Therefore you get a total of 8 valence shell electrons.

Remember: when you have 8 valence shell electrons you have obtained an octet

In other words...

8 valence shell electrons = satisfied octet rule
Liula [17]3 years ago
3 0

Answer:

3??

Explanation:

hey??????????????

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transmutation, conversion of one chemical element into another. A transmutation entails a change in the structure of atomic nuclei and hence may be induced by a nuclear reaction (q.v.), such as neutron capture, or occur spontaneously by radioactive decay, such as alpha decay and beta decay .

3 0
2 years ago
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2 years ago
Calculate the number of moles equivalent to 12.7 gram of iodine molecule ​
Alexus [3.1K]

\LARGE{ \boxed{ \purple{ \rm{Answer}}}}

☃️ Chemical formulae ➝ \sf{I_2}

How to find?

For solving this question, We need to know how to find moles of solution or any substance if a certain weight is given.

\boxed{ \sf{No. \: of \: moles =  \frac{Given \: weight}{Molecular \: weight} }}

Solution:

❍ Molecular weight of \sf{I_2}

= 2 × 126.90

= 253.80

= 254 (approx.)

❍ Given weight: 12.7

Then, no. of moles,

⇛ No. of moles = 12.7 / 254

⇛ No. of moles = 0.05 moles

⚘ No. of moles of Iodine molecule in the given weight = <u>0.05</u><u> </u><u>moles </u>

<u>━━━━━━━━━━━━━━━━━━━━</u>

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3 years ago
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D
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explanation

the chemical formula of water is H²O.

Hydrogen+Oxygen=water

answer

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