The answer is C, Uranium.
Natural gas, coal, and oil are all naturally made from fossils. Uranium is an element which can be found on the Periodic Table of Elements.
Answer: 
Explanation:
Lattice energy : It is defined energy released when ions combine together in a gaseous phase to form a compound. it is energy possessed by the crystal lattice of a compound. Denoted by symbol
.
, energy is absorbed while forming of the lattice
, energy is release while forming of the lattice

One mole of sodium ion when combines with one mole chloride ion release 786 kJ of energy.
Answer:
Letter C is the correct one
80 equals the mass number. In the periodic table, the atomic number of Bromine is 35. The atomic number equals the number of protons.
80-35= number of neutrons (mass-protons)
So, we have P=35 N=45
Furthermore, since the atom is neutral that must mean that the number of electrons equals the number of protons.
e=35