13 neutrons.
Mass=25
Number=12
Mass - Number= Amount of Neutrons
The atomic number is also the mount of Protons and Electrons of the element.
I remember coming across this question and the options were:
KOH, HCN, NH₃, HI, Sr(OH)₂
Now, a substance with a low pH is one that dissociates completely in water to release hydrogen ions, while basic substances dissociate completely to release hydroxide ions. Therefore, in the order of increasing pH:
HI, HCN, NH₃, Sr(OH)₂, KOH
Convection is the transfer of heat/thermal enrgy by the movement of a fluid(either a liquid or gas).
Gives away hydrogen ion Is an acid...while the one that accepts is a base