Direct participant observation claim that the researcher be physically present. This can cause the respondents to alter their actions in order to look in the eyes of the researcher.
Unobtrusive measures are measures that don't demand the researcher to intrude in the research context.
The answer is <span>Polonium-218 (84 protons).
Alpha particles consist of two protons and two neutrons. So, mass is 4 (2+2) amu </span><span>.
</span><span>When an atom of emits an alpha particle, its atomic number will be reduced by 2 and a mass number will be reduced by 4:
</span> → + .<span>
After emission of the alpha particle from Radon-222 with 86 protons, the daughter product will have the atomic number reduced by 2: 86-2 = 84 and the mass number reduced by 4: 222-4=218:
</span> → + .
Answer:
HOW DARE YOU DELETE MY ANSWER
Explanation:
;O
Let her get it all out and then try to help her . If she keeps panicking u might wanna take her to get some help
