How can one show that elements that have different appearances have similar chemical properties?
1 answer:
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Answer:
See explaination
Explanation:
The invariant mass of an electron is approximately9. 109×10−31 kilograms, or5. 489×10−4 atomic mass units. On the basis of Einstein's principle of mass–energy equivalence, this mass corresponds to a rest energy of 0.511 MeV.
Check attachment for further solution to the exercise.
Answer:
(a) The Lewis structure is shown in the image below.
(b)
(c) Calcium loses 2 electrons to 2 atoms of fluorine and these 2 atoms of fluorine accepts each electron to form ionic bond.
(d) Calcium atom loses electrons.
Explanation:
Calcium is the element of second group and forth period. The electronic configuration of Calcium is - 2, 8, 8, 2 or
There are 2 valence electrons of Calcium.
Fluorine is the element of group 17 and second period. The electronic configuration of the element fluorine is - 2, 7 or
There is 1 valence electron of fluorine.
The Lewis structure is drawn in such a way that the octet of each atom is complete.
Thus, calcium loses 2 electrons to 2 atoms of fluorine and these 2 atoms of fluorine accepts each electron to form ionic bond. This is done in order that the octet of the atoms are complete and they become stable.
Thus, the formula of calcium chloride is .
<u>(a) The Lewis structure is shown in the image below.</u>
<u>(b) </u>
<u>(c) Calcium loses 2 electrons to 2 atoms of fluorine and these 2 atoms of fluorine accepts each electron to form ionic bond.</u>
<u>(d) Calcium atom loses electrons.</u>
