MgqI% = the formula and mass for H20 and that should be your answer for water
Answer:
b. The shorter the half-life, the more dangerous the radioisotope.
Mostly in my opinion I think it’s the secound one
Answer:
It usually leads to more confidence in the results
Answer: See below
Explanation: a. The mass of an element is composed of:
protons: 1 amu each
neutrons: 1 amu each
electrons: 0 amu each
Only the protons and neutrons are counted in the atomic mass of an element
b. Electrons are assigned a mass of 0. They do have a mass, but it is exceedingly small compared to the protons and neutrons, so they are left out of the calculation of an element's mass.
c. An element becomes unstable if the neutrons exceed the protons by a certain ratio, dependent on the element.
