Q:1 Define law of 1) conservation of mass 2) constant proportion. Q: 2 What is E.C. of 1) F 2) Si 3) Ar?

Pls name the sciencist in both the Questions!

Q:1 Define law of 1) conservation of mass 2) constant proportion. Q: 2 What is E.C. of 1) F 2) Si 3) Ar?
Law of Conservation of Mass : According to this law in all the chemical reactions, the total mass of the products is equal to the total mass of the reactants. Matter can neither be created nor be destroyed.


Scienctist : Lavoisier





Law of Constant Proportion : According to this law a pure chemical compound always consists of the same combined together in a fixed proportion by weight.


Scienctist : Louis Proust





E.C. of Flourine,F = 2,7


E.C. of Silicon,Si = 2,8,4


E.C. of Argon,Ar = 2,8,8


Scienctist : Neil Bohr as he only proposed orbits or shells (K,L,M,N,etc.) in which electrons move around.
Reply:1.) most likley Lavousier, a French chemist who saw that the original mass was conserved if the products of a reaction were compared to the mass of the reactants.





2.) Boyle, although I'm guessing. He worked with gasses and made observations about their volumes.





E.C. = electronic configuration??





Fluorine has 7 electrons in its outer atomic shell. It will aquire an electron from another atom and become a negatively charged ion. Fluorine is the most electronegative element known.





Silicon is similar to Carbon. It has a pair of electrons in an S and a pair of electrons in a P orbital.





Argon is a "noble gas" and forms no chemical bonds. This is because it has a full set of 8 electrons in its outer shell and needs to neither aquire nor donate electrons to fill the shell.
Reply:do your own flipping homework.