I would say the last one because unlike beta and alpha rays they will have no effect on the mass or atomic number because they are just composed of high energy radiation
The answer would be Rocks, metals, hydrogen compounds, hydrogen and helium, all in gaseous form.
8 because atomic number is the same as number of protons, protons and electrons have the same amount so that the element is neither positive nor negative.
The correct answers are:
1. B. Mg loses two electrons.
When Mg and Br combine, 2 atoms of Br attaches itself to
Mg. The chemical reaction is:
Mg + Br ---> MgBr2
Since Br is more electronegative than Mg, then Mg loses
an electron per Br therefore losing 2 electrons.
2. D. An atom that gains electrons must be attracted to an atom
that loses electrons.
An ionic bond is formed when one molecule is more
electronegative than the other molecule which results in gaining and losing of
electrons. The more electronegative molecule gains electron while the less
electronegative loses electron.
P =mgh
You have mass, g =9.8 m/s2 and height calculate the potential energy P
