Answer:
Gamma decay/radiation
Explanation:
Gamma radiation has no mass and no electrical charge which means no change in the atomic number or mass number when gamma rays are emitted.
I think you mean ionic bond and not conic bond. The pair of elements that form an ionic bond are barium and chlorine.
B, radon is correct. Interestingly, it often collects in basements from radioactive decay of rocks such as granite that contain uranium. Because it is an unreactive noble gas and because it is denser than air it sits in basements and must be pumped out. It collects in human lungs and is the second leading cause of lung cancer behind smoking.
The electron bit would be 2 and you could colour in 4 boxes:) I had the same question as this and I got it correct
Mercury is the smallest and closest plant to the sun
