Answer:
3. The proton number is 15.
Explanation:
Phosphorus, P is the element with the atomic number = 15. The atomic number = Number of protons. That means:
3. The proton number is 15.
Now, the number of protons = Number of electrons = 15.
And, nucleon number = Number of protons + number of neutrons. The must abundant phosphorus atom contains 16 neutrons and nucleon number is: 15+16 = 31.
Thus, we can know which statement is true.
<span>(8.90/95.211) =0.09347 moles</span>
Answer:
t (ºC) = T(K) -273
Explanation:
t (ºC) = 100.6 -273
t (ºC) =<u><em> </em></u><u>- 172,4</u>
467.5 centimeters. are you sure that's high school chemistry though, lad?
D, the energy of formation is equal to the dissociation. so from magnesium ions and Hydrogen ions, when they form the lattice energy is equal to formation-dissociation, as they aren't going to dissociate (fixed in lattice) the formation should be the same as the the overall lattice energy.
