Answer:
C.Tritium
Explanation:
Isotopes are forms of an element with different mass number but same atomic number. Mass number is the sum of the number of protons and neutrons in the nucleus of an atom, while atomic number is the number of protons.
Mass number = protons +neutrons.
Atomic number = protons only
We can say that mass number = atomic number + number of neutrons.
The number of neutrons is what differentiates the isotopes of an element.
For hydrogen element, it has three isotopes namely; protium, deuterium and tritium which have 0,1 and 2 neutrons respectively. Thus the answer is C
Salt is a non magnetic solid which makes it soluble in water.
-hope that helps lol
Answer:
The reaction is not in equilibrium and it proceed in reverse direction to reach the equilibruim condition
Explanation:
We have
H₂(g) + x₂(g) ⇆ 2HX (g)
Kc = 2.4 x 10 ⁻³ at 25°C
![K_c = \frac{[HX]^2}{[H_2][X_2]}](https://tex.z-dn.net/?f=K_c%20%3D%20%5Cfrac%7B%5BHX%5D%5E2%7D%7B%5BH_2%5D%5BX_2%5D%7D)
Now we have 3L reactor and the number of mole of species are 0.150 mole H₂, 0.150 mole X₂ and 0.600 mole HX
Therefore,
![[H_2] = \frac{0.150}{3} \\= 0.05M](https://tex.z-dn.net/?f=%5BH_2%5D%20%3D%20%5Cfrac%7B0.150%7D%7B3%7D%20%5C%5C%3D%200.05M)
![[X_2] = \frac{0.150}{3} \\= 0.05M](https://tex.z-dn.net/?f=%5BX_2%5D%20%3D%20%5Cfrac%7B0.150%7D%7B3%7D%20%5C%5C%3D%200.05M)
![[HX] = \frac{0.600}{3} \\= 0.2M](https://tex.z-dn.net/?f=%5BHX%5D%20%3D%20%5Cfrac%7B0.600%7D%7B3%7D%20%5C%5C%3D%200.2M)
Therefore,
![Q_c = \frac{[HX]^2}{[H_2][X_2]}](https://tex.z-dn.net/?f=Q_c%20%3D%20%5Cfrac%7B%5BHX%5D%5E2%7D%7B%5BH_2%5D%5BX_2%5D%7D)
![Q_c = \frac{[0.200]^2}{[0.05][0.05]}\\\\=16](https://tex.z-dn.net/?f=Q_c%20%3D%20%5Cfrac%7B%5B0.200%5D%5E2%7D%7B%5B0.05%5D%5B0.05%5D%7D%5C%5C%5C%5C%3D16)
Now, we calculate the free energy change for the reaction
ΔrG = RT In Q/K
As free energy is +ve so the reaction is not in equilibruim and proceed in reverse reaction to reach tje equilibruim condition
The answer is
A. orbiting the nucleus, changing direction and thus giving off energy, the electrons would lose all energy and collapse into the nucleus.
Bohr stated that electron can be only on certain distances from nucleus. Electrons can be only on allowed orbits.
