Answer:
each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element.
"some elements have only one stable isotope"
Explanation:
Surface tension. Im not sure if this is completely right but I hope I helped :)
Hello!
Mercury is the only metal that takes liquid form at room temperature.
The metal is also very toxic to humans, so "playing with it" is a bad idea
this metal used to be used in thermometers, but most of them today don't use mercury anymore
I hope this helps, and have a nice day!
Answer: KI> Al(NO3)3> HF> CH3OH
Explanation:
Potassium iodide is a halide of group 1 which is very soluble in water and whose ions are very mobile in solution. It will readily dissociate and conduct electricity making the bulb brightest when KI is the electrolyte. Salts of group 13 are not as ionic as those of group 1 but dissociate appreciably and conduct electricity. HF is a halogen acid but self ionizes and shows some degree of conductivity. Methanol will have the lowest conductivity making the bulb dimmest when methanol is the electrolyte.
