00:01
We have been asked the molecular formula of clf3, x -cf -5 and pbr5.
00:09
We know that the molecular formula, the valence electron in chlorine, is 7.
00:17
1, 2, 3, 4, 5, 6 and 7.
00:27
The fluorine has 7 electrons in its valence shell.
00:39
Similarly, there is another fluorine atom with 7 electron in its valence shell.
00:50
Also, there is another fluorine with 7 electron in its valence shell.
00:59
It combined with its share electrons with 1 chlorine, to completes its octet.
01:07
Similarly, another fluorine also share one electron with fluorine to completes its octet and similarly, the third fluorine shares one electron with chlorine to complete its octet.
01:23
We also know that the electronegativity of fluorine is greater than chlorine.
01:29
Therefore, the dipole movement is from chlorine towards chlorine.
01:40
Like this another structure is d r5 we know that phosphorus has five electrons in its valence shell one two three four five and bromine has seven electrons in its valent shell one 1, 2, 3, 4.
02:25
1, 3, 4, 5, 6, 7.
02:38
And these bromine also has 7 electrons, that is 1, 2, 3, 4, 5, 6, 7...