<span>As particles travel in straight lines, their paths sometimes meet, and then they bounce apart with no gain or loss of energy. hope this help:)</span>
I believe the compound is Phosphorus pentoxide
Explanation:
no. of molea of Ca(NO3)2 = given mass/molar mass
no. of moles= 92/ 164 = 0.56 mol
formula=
Molarity = moles of solute /solution in litres
Molarity = 0.56/ 0.4
=1.4 M
hope it helped!
Period of an element tells the number of orbitals in it, which is it's principal quantum number (n).
