Answer:
(4,20)
Explanation:
Oxygen di-fluoride or OF2 is a polar molecule, formed through the covalent bonding between one Oxygen and two Fluorine atoms.
Oxygen has atomic no. 8 and its electronic configuration is as below:
Oxygen has 4 electrons in the valence shell. It has the ability to share two electrons with other atoms through covalent bond and get stable.
The atomic number of Fluorine is 7, and its electronic configuration is as:
So, Fluorine atom has the capacity to accept 1 electron to form 1 covalent bond or in the formation of the F- ion.
The structure of OF2 is a bent structure with O atom sandwiched by two fluorine atoms like F-O-F. So there are two electrons on oxygen atom that are taking part in the formation of covalent bond with each Fluorine atom (Please dot structure in figure).
Now we can easily calculate no of bonding and non-bonding electrons.
- No. of bonding electrons = 4 (two from oxygen and two from fluorine atoms each)
- No. of non-bonding electrons= 20 (6+6 from two Fluorine atoms and 6 from Oxygen atom)
Hope it helps! :)
Transpiration is the process by which moisture is carried through plants from roots to small pores on the underside of leaves, where it changes to vapor and is released to the atmosphere.
The closest to this definition would be the 2nd option.
Answer:
I disagree, because earth rotation on its axis causes day and night, on the other hand the its revolution on the orbit around the sun causes seasons. One Rotation would means one day has completed, and one revolution would mean that one year has completed. Therefore, it's obvious that Earth's revolution takes longer than the rotation.
I hope that helps...
I believe the correct answer is no, it is impossible to have 5.0*10^-25g of Al. One atom of Al weighs <span>4.48*10^-23 g/atom Al which means</span> it is impossible to have any weight of Al less than that. Hope this answers the question. Have a nice day.
<h3><u>Answer;</u></h3>
I. An electric current can be produced by a changing magnetic force.
II. A magnetic force can be produced by an electric current.
<h3><u>Explanation;</u></h3>
- Electric current is the net movement of electric charges in a single direction, measured in amperes (A).
- Electric current produces a magnetic field. Electric currents and magnets exert force on each other, and this relationship has many uses.
- A temporary magnet, known as an electromagnet, can be made by passing electric current through a wire that is coiled around an iron core.
- A magnet can also be used to generate electricity. When a wire moves within a magnet's magnetic field, electricity is produced.